/*-------------------------------------------------------------------------
*
* define.c--
- * POSTGRES "define" utility code.
+ *
+ * These routines execute some of the CREATE statements. In an earlier
+ * version of Postgres, these were "define" statements.
*
* Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/commands/define.c,v 1.2 1996/10/23 07:40:01 scrappy Exp $
+ * $Header: /cvsroot/pgsql/src/backend/commands/define.c,v 1.3 1996/10/31 09:07:41 bryanh Exp $
*
* DESCRIPTION
* The "DefineFoo" routines take the parse tree and pick out the
* appropriate arguments/flags, passing the results to the
* corresponding "FooDefine" routines (in src/catalog) that do
- * the actual catalog-munging.
+ * the actual catalog-munging. These routines also verify permission
+ * of the user to execute the command.
*
* NOTES
* These things must be defined and committed in the following order:
- * "define function":
- * input/output, recv/send procedures
- * "define type":
- * type
- * "define operator":
- * operators
+ * "create function":
+ * input/output, recv/send procedures
+ * "create type":
+ * type
+ * "create operator":
+ * operators
*
- * Most of the parse-tree manipulation routines are defined in
- * commands/manip.c.
+ * Most of the parse-tree manipulation routines are defined in
+ * commands/manip.c.
*
*-------------------------------------------------------------------------
*/
#include <ctype.h>
#include <math.h>
-#include "postgres.h"
-
-#include "access/heapam.h"
-#include "access/htup.h"
-#include "utils/tqual.h"
-#include "catalog/catname.h"
-#include "catalog/pg_aggregate.h"
-#include "catalog/pg_proc.h"
-#include "catalog/pg_type.h"
-#include "catalog/pg_operator.h"
-#include "utils/syscache.h"
-#include "nodes/pg_list.h"
-#include "nodes/parsenodes.h"
-#include "fmgr.h" /* for fmgr */
-
-#include "utils/builtins.h" /* prototype for textin() */
-
-#include "utils/elog.h"
-#include "utils/palloc.h"
-#include "commands/defrem.h"
-#include "optimizer/xfunc.h"
-#include "tcop/dest.h"
+#include <postgres.h>
+
+#include <access/heapam.h>
+#include <access/htup.h>
+#include <utils/tqual.h>
+#include <catalog/catname.h>
+#include <catalog/pg_aggregate.h>
+#include <catalog/pg_operator.h>
+#include <catalog/pg_proc.h>
+#include <catalog/pg_type.h>
+#include <catalog/pg_user.h> /* superuser() uses this */
+#include <utils/syscache.h>
+#include <nodes/pg_list.h>
+#include <nodes/parsenodes.h>
+#include <fmgr.h> /* for fmgr */
+
+#include <utils/builtins.h> /* prototype for textin() */
+
+#include <utils/elog.h>
+#include <utils/palloc.h>
+#include <commands/defrem.h>
+#include <optimizer/xfunc.h>
+#include <tcop/dest.h>
static char *defGetString(DefElem *def);
static int defGetTypeLength(DefElem *def);
-#define DEFAULT_TYPDELIM ','
+#define DEFAULT_TYPDELIM ','
+
+
+bool
+superuser(void) {
+/*--------------------------------------------------------------------------
+ The Postgres user running this command has Postgres superuser
+ privileges.
+--------------------------------------------------------------------------*/
+ HeapTuple utup;
+ char *userName;
+
+ userName = GetPgUserName();
+ utup = SearchSysCacheTuple(USENAME, PointerGetDatum(userName),
+ 0,0,0);
+ Assert(utup != NULL);
+ return ((Form_pg_user)GETSTRUCT(utup))->usesuper;
+}
+
+
-/*
- * DefineFunction --
- * Registers a new function.
- *
- */
void
-DefineFunction(ProcedureStmt *stmt, CommandDest dest)
-{
- List *parameters = stmt->withClause;
- char *proname = stmt->funcname;
- char* probin_str;
- char* prosrc_str;
- char *prorettype;
- char *languageName;
- bool canCache = FALSE;
- List *argList;
- int32 byte_pct = 100, perbyte_cpu, percall_cpu, outin_ratio = 100;
- bool returnsSet;
- int i;
-
- /* ----------------
- * figure out the language and convert it to lowercase.
- * ----------------
- */
- languageName = stmt->language;
- for (i = 0; i < NAMEDATALEN && languageName[i]; ++i) {
- languageName[i] = tolower(languageName[i]);
- }
-
- /* ----------------
- * handle "returntype = X". The function could return a singleton
- * value or a set of values. Figure out which.
- * ----------------
- */
- if (nodeTag(stmt->returnType)==T_TypeName) {
- TypeName *setType = (TypeName *)stmt->returnType;
- /* a set of values */
- prorettype = setType->name,
- returnsSet = true;
+case_translate_language_name(const char *input, char *output) {
+/*-------------------------------------------------------------------------
+ Translate the input language name to lower case, except if it's C,
+ translate to upper case.
+--------------------------------------------------------------------------*/
+ int i;
+
+ for (i = 0; i < NAMEDATALEN && input[i] != '\0'; ++i)
+ output[i] = tolower(input[i]);
+
+ output[i] = '\0';
+
+ if (strcmp(output, "c") == 0) output[0] = 'C';
+}
+
+
+
+void
+compute_return_type(const Node *returnType,
+ char **prorettype_p, bool *returnsSet_p) {
+/*---------------------------------------------------------------------------
+ Examine the "returns" clause returnType of the CREATE FUNCTION statement
+ and return information about it as **prorettype_p and **returnsSet.
+----------------------------------------------------------------------------*/
+ if (nodeTag(returnType) == T_TypeName) {
+ /* a set of values */
+ TypeName *setType = (TypeName *)returnType;
+ *prorettype_p = setType->name,
+ *returnsSet_p = true;
}else {
- /* singleton */
- prorettype = strVal(stmt->returnType);
- returnsSet = false;
+ /* singleton */
+ *prorettype_p = strVal(returnType);
+ *returnsSet_p = false;
}
+}
+
- /* Next attributes are only defined for C functions */
- if ( strcmp(languageName, "c") == 0 ||
- strcmp(languageName, "internal") == 0 ) {
- List *pl;
-
- /* the defaults */
- byte_pct = BYTE_PCT;
- perbyte_cpu = PERBYTE_CPU;
- percall_cpu = PERCALL_CPU;
- outin_ratio = OUTIN_RATIO;
-
- foreach(pl, parameters) {
- int count;
- char *ptr;
- ParamString *param = (ParamString*)lfirst(pl);
-
- if (!strcasecmp(param->name, "isacachable")) {
- /* ----------------
- * handle "[ iscachable ]": figure out if Postquel functions
- * are cacheable automagically?
- * ----------------
- */
- canCache = TRUE;
- }else if (!strcasecmp(param->name, "trusted")) {
- /*
- * we don't have untrusted functions any more. The 4.2
- * implementation is lousy anyway so I took it out.
- * -ay 10/94
- */
- elog(WARN, "untrusted function has been decommissioned.");
- }else if (!strcasecmp(param->name, "byte_pct")) {
- /*
- ** handle expensive function parameters
- */
- byte_pct = atoi(param->val);
- }else if (!strcasecmp(param->name, "perbyte_cpu")) {
- if (!sscanf(param->val, "%d", &perbyte_cpu)) {
- for (count = 0, ptr = param->val; *ptr != '\0'; ptr++) {
- if (*ptr == '!') {
- count++;
- }
- }
- perbyte_cpu = (int) pow(10.0, (double) count);
- }
- }else if (!strcasecmp(param->name, "percall_cpu")) {
- if (!sscanf(param->val, "%d", &percall_cpu)) {
- for (count = 0, ptr = param->val; *ptr != '\0'; ptr++) {
- if (*ptr == '!') {
- count++;
- }
- }
- percall_cpu = (int) pow(10.0, (double) count);
- }
- }else if (!strcasecmp(param->name, "outin_ratio")) {
- outin_ratio = atoi(param->val);
- }
- }
- } else if (!strcmp(languageName, "sql")) {
- /* query optimizer groks sql, these are meaningless */
- perbyte_cpu = percall_cpu = 0;
- } else {
- elog(WARN, "DefineFunction: language '%s' is not supported",
- languageName);
+
+void
+compute_full_attributes(const List *parameters, int32 *byte_pct_p,
+ int32 *perbyte_cpu_p, int32 *percall_cpu_p,
+ int32 *outin_ratio_p, bool *canCache_p) {
+/*--------------------------------------------------------------------------
+ Interpret the parameters *parameters and return their contents as
+ *byte_pct_p, etc.
+
+ These are the full parameters of a C or internal function.
+---------------------------------------------------------------------------*/
+ List *pl;
+
+ /* the defaults */
+ *byte_pct_p = BYTE_PCT;
+ *perbyte_cpu_p = PERBYTE_CPU;
+ *percall_cpu_p = PERCALL_CPU;
+ *outin_ratio_p = OUTIN_RATIO;
+
+ foreach(pl, (List *)parameters) {
+ int count;
+ char *ptr;
+ ParamString *param = (ParamString*)lfirst(pl);
+
+ if (strcasecmp(param->name, "iscachable") == 0) {
+ *canCache_p = true;
+ } else if (strcasecmp(param->name, "trusted") == 0) {
+ /*
+ * we don't have untrusted functions any more. The 4.2
+ * implementation is lousy anyway so I took it out.
+ * -ay 10/94
+ */
+ elog(WARN, "untrusted function has been decommissioned.");
+ } else if (strcasecmp(param->name, "byte_pct") == 0) {
+ /*
+ ** handle expensive function parameters
+ */
+ *byte_pct_p = atoi(param->val);
+ } else if (strcasecmp(param->name, "perbyte_cpu") == 0) {
+ if (sscanf(param->val, "%d", perbyte_cpu_p) == 0) {
+ for (count = 0, ptr = param->val; *ptr != '\0'; ptr++)
+ if (*ptr == '!') count++;
+ }
+ *perbyte_cpu_p = (int) pow(10.0, (double) count);
+ } else if (strcasecmp(param->name, "percall_cpu") == 0) {
+ if (sscanf(param->val, "%d", percall_cpu_p) == 0) {
+ for (count = 0, ptr = param->val; *ptr != '\0'; ptr++)
+ if (*ptr == '!') count++;
+ *percall_cpu_p = (int) pow(10.0, (double) count);
+ }
+ } else if (strcasecmp(param->name, "outin_ratio") == 0) {
+ *outin_ratio_p = atoi(param->val);
+ }
}
-
- /* ----------------
- * handle "[ arg is (...) ]"
- * XXX fix optional arg handling below
- * ----------------
- */
- argList = stmt->defArgs;
-
- if ( strcmp(languageName, "c") == 0 ||
- strcmp(languageName, "internal") == 0 ) {
- prosrc_str = "-";
- probin_str = stmt->as;
+}
+
+
+
+void
+interpret_AS_clause(const char languageName[], const char as[],
+ char **prosrc_str_p, char **probin_str_p) {
+
+ if ( strcmp(languageName, "C") == 0 ||
+ strcmp(languageName, "internal") == 0 ) {
+ *prosrc_str_p = "-";
+ *probin_str_p = (char *)as;
} else {
- prosrc_str = stmt->as;
- probin_str = "-";
+ *prosrc_str_p = (char *)as;
+ *probin_str_p = "-";
}
-
- /* C is stored uppercase in pg_language */
- if (!strcmp(languageName, "c")) {
- languageName[0] = 'C';
+}
+
+
+
+/*
+ * CreateFunction --
+ * Execute a CREATE FUNCTION utility statement.
+ *
+ */
+void
+CreateFunction(ProcedureStmt *stmt, CommandDest dest)
+{
+ char *probin_str;
+ /* pathname of executable file that executes this function, if any */
+ char *prosrc_str;
+ /* SQL that executes this function, if any */
+ char *prorettype;
+ /* Type of return value (or member of set of values) from function */
+ char languageName[NAMEDATALEN+1];
+ /* name of language of function, with case adjusted:
+ "C", "internal", or "SQL"
+ */
+ /* The following are attributes of the function, as expressed in the
+ CREATE FUNCTION statement, where applicable.
+ */
+ int32 byte_pct, perbyte_cpu, percall_cpu, outin_ratio;
+ bool canCache;
+ bool returnsSet;
+ /* The function returns a set of values, as opposed to a singleton. */
+
+
+ case_translate_language_name(stmt->language, languageName);
+
+ compute_return_type(stmt->returnType, &prorettype, &returnsSet);
+
+ if ( strcmp(languageName, "C") == 0 ||
+ strcmp(languageName, "internal") == 0 ) {
+ compute_full_attributes(stmt->withClause,
+ &byte_pct, &perbyte_cpu, &percall_cpu,
+ &outin_ratio, &canCache);
+ } else if (strcmp(languageName, "sql") == 0) {
+ /* query optimizer groks sql, these are meaningless */
+ perbyte_cpu = percall_cpu = 0;
+ byte_pct = outin_ratio = 100;
+ canCache = false;
+ } else {
+ elog(WARN,
+ "Unrecognized language specified in a CREATE FUNCTION: "
+ "'%s'. Recognized languages are sql, C, and internal.",
+ languageName);
}
-
- /* ----------------
- * now have ProcedureDefine do all the work..
- * ----------------
- */
- ProcedureCreate(proname,
- returnsSet,
- prorettype,
- languageName,
- prosrc_str, /* converted to text later */
- probin_str, /* converted to text later */
- canCache,
- TRUE,
- byte_pct,
- perbyte_cpu,
- percall_cpu,
- outin_ratio,
- argList,
- dest);
-
+
+ interpret_AS_clause(languageName, stmt->as, &prosrc_str, &probin_str);
+
+ if (strcmp(languageName, "sql") != 0 && !superuser())
+ elog(WARN,
+ "Only users with Postgres superuser privilege are permitted "
+ "to create a function "
+ "in the '%s' language. Others may use the 'sql' language.",
+ languageName);
+ /* Above does not return. */
+ else {
+ /* And now that we have all the parameters, and know we're permitted
+ to do so, go ahead and create the function.
+ */
+ ProcedureCreate(stmt->funcname,
+ returnsSet,
+ prorettype,
+ languageName,
+ prosrc_str, /* converted to text later */
+ probin_str, /* converted to text later */
+ canCache,
+ true, /* (obsolete "trusted") */
+ byte_pct,
+ perbyte_cpu,
+ percall_cpu,
+ outin_ratio,
+ stmt->defArgs,
+ dest);
+ }
}
+
+
/* --------------------------------
* DefineOperator--
*
- * this function extracts all the information from the
- * parameter list generated by the parser and then has
- * OperatorCreate() do all the actual work.
+ * this function extracts all the information from the
+ * parameter list generated by the parser and then has
+ * OperatorCreate() do all the actual work.
*
* 'parameters' is a list of DefElem
* --------------------------------
*/
void
-DefineOperator(char *oprName,
- List *parameters)
+DefineOperator(char *oprName,
+ List *parameters)
{
- uint16 precedence=0; /* operator precedence */
- bool canHash=false; /* operator hashes */
- bool isLeftAssociative=true; /* operator is left associative */
- char *functionName=NULL; /* function for operator */
- char *typeName1=NULL; /* first type name */
- char *typeName2=NULL; /* second type name */
- char *commutatorName=NULL; /* optional commutator operator name */
- char *negatorName=NULL; /* optional negator operator name */
- char *restrictionName=NULL; /* optional restrict. sel. procedure */
- char *joinName=NULL; /* optional join sel. procedure name */
- char *sortName1=NULL; /* optional first sort operator */
- char *sortName2=NULL; /* optional second sort operator */
- List *pl;
+ uint16 precedence=0; /* operator precedence */
+ bool canHash=false; /* operator hashes */
+ bool isLeftAssociative=true; /* operator is left associative */
+ char *functionName=NULL; /* function for operator */
+ char *typeName1=NULL; /* first type name */
+ char *typeName2=NULL; /* second type name */
+ char *commutatorName=NULL; /* optional commutator operator name */
+ char *negatorName=NULL; /* optional negator operator name */
+ char *restrictionName=NULL; /* optional restrict. sel. procedure */
+ char *joinName=NULL; /* optional join sel. procedure name */
+ char *sortName1=NULL; /* optional first sort operator */
+ char *sortName2=NULL; /* optional second sort operator */
+ List *pl;
/*
* loop over the definition list and extract the information we need.
*/
foreach (pl, parameters) {
- DefElem *defel = (DefElem *)lfirst(pl);
-
- if (!strcasecmp(defel->defname, "leftarg")) {
- /* see gram.y, must be setof */
- if (nodeTag(defel->arg)==T_TypeName)
- elog(WARN, "setof type not implemented for leftarg");
-
- if (nodeTag(defel->arg)==T_String) {
- typeName1 = defGetString(defel);
- }else {
- elog(WARN, "type for leftarg is malformed.");
- }
- } else if (!strcasecmp(defel->defname, "rightarg")) {
- /* see gram.y, must be setof */
- if (nodeTag(defel->arg)==T_TypeName)
- elog(WARN, "setof type not implemented for rightarg");
-
- if (nodeTag(defel->arg)==T_String) {
- typeName2 = defGetString(defel);
- }else {
- elog(WARN, "type for rightarg is malformed.");
- }
- } else if (!strcasecmp(defel->defname, "procedure")) {
- functionName = defGetString(defel);
- } else if (!strcasecmp(defel->defname, "precedence")) {
- /* NOT IMPLEMENTED (never worked in v4.2) */
- elog(NOTICE, "CREATE OPERATOR: precedence not implemented");
- } else if (!strcasecmp(defel->defname, "associativity")) {
- /* NOT IMPLEMENTED (never worked in v4.2) */
- elog(NOTICE, "CREATE OPERATOR: associativity not implemented");
- } else if (!strcasecmp(defel->defname, "commutator")) {
- commutatorName = defGetString(defel);
- } else if (!strcasecmp(defel->defname, "negator")) {
- negatorName = defGetString(defel);
- } else if (!strcasecmp(defel->defname, "restrict")) {
- restrictionName = defGetString(defel);
- } else if (!strcasecmp(defel->defname, "join")) {
- joinName = defGetString(defel);
- } else if (!strcasecmp(defel->defname, "hashes")) {
- canHash = TRUE;
- } else if (!strcasecmp(defel->defname, "sort1")) {
- /* ----------------
- * XXX ( ... [ , sort1 = oprname ] [ , sort2 = oprname ] ... )
- * XXX is undocumented in the reference manual source as of
- * 89/8/22.
- * ----------------
- */
- sortName1 = defGetString(defel);
- } else if (!strcasecmp(defel->defname, "sort2")) {
- sortName2 = defGetString(defel);
- } else {
- elog(NOTICE, "DefineOperator: attribute \"%s\" not recognized",
- defel->defname);
- }
+ DefElem *defel = (DefElem *)lfirst(pl);
+
+ if (!strcasecmp(defel->defname, "leftarg")) {
+ /* see gram.y, must be setof */
+ if (nodeTag(defel->arg)==T_TypeName)
+ elog(WARN, "setof type not implemented for leftarg");
+
+ if (nodeTag(defel->arg)==T_String) {
+ typeName1 = defGetString(defel);
+ }else {
+ elog(WARN, "type for leftarg is malformed.");
+ }
+ } else if (!strcasecmp(defel->defname, "rightarg")) {
+ /* see gram.y, must be setof */
+ if (nodeTag(defel->arg)==T_TypeName)
+ elog(WARN, "setof type not implemented for rightarg");
+
+ if (nodeTag(defel->arg)==T_String) {
+ typeName2 = defGetString(defel);
+ }else {
+ elog(WARN, "type for rightarg is malformed.");
+ }
+ } else if (!strcasecmp(defel->defname, "procedure")) {
+ functionName = defGetString(defel);
+ } else if (!strcasecmp(defel->defname, "precedence")) {
+ /* NOT IMPLEMENTED (never worked in v4.2) */
+ elog(NOTICE, "CREATE OPERATOR: precedence not implemented");
+ } else if (!strcasecmp(defel->defname, "associativity")) {
+ /* NOT IMPLEMENTED (never worked in v4.2) */
+ elog(NOTICE, "CREATE OPERATOR: associativity not implemented");
+ } else if (!strcasecmp(defel->defname, "commutator")) {
+ commutatorName = defGetString(defel);
+ } else if (!strcasecmp(defel->defname, "negator")) {
+ negatorName = defGetString(defel);
+ } else if (!strcasecmp(defel->defname, "restrict")) {
+ restrictionName = defGetString(defel);
+ } else if (!strcasecmp(defel->defname, "join")) {
+ joinName = defGetString(defel);
+ } else if (!strcasecmp(defel->defname, "hashes")) {
+ canHash = TRUE;
+ } else if (!strcasecmp(defel->defname, "sort1")) {
+ /* ----------------
+ * XXX ( ... [ , sort1 = oprname ] [ , sort2 = oprname ] ... )
+ * XXX is undocumented in the reference manual source as of
+ * 89/8/22.
+ * ----------------
+ */
+ sortName1 = defGetString(defel);
+ } else if (!strcasecmp(defel->defname, "sort2")) {
+ sortName2 = defGetString(defel);
+ } else {
+ elog(NOTICE, "DefineOperator: attribute \"%s\" not recognized",
+ defel->defname);
+ }
}
/*
* make sure we have our required definitions
*/
if (functionName==NULL) {
- elog(WARN, "Define: \"procedure\" unspecified");
+ elog(WARN, "Define: \"procedure\" unspecified");
}
/* ----------------
- * now have OperatorCreate do all the work..
+ * now have OperatorCreate do all the work..
* ----------------
*/
- OperatorCreate(oprName, /* operator name */
- typeName1, /* first type name */
- typeName2, /* second type name */
- functionName, /* function for operator */
- precedence, /* operator precedence */
- isLeftAssociative, /* operator is left associative */
- commutatorName, /* optional commutator operator name */
- negatorName, /* optional negator operator name */
- restrictionName, /* optional restrict. sel. procedure */
- joinName, /* optional join sel. procedure name */
- canHash, /* operator hashes */
- sortName1, /* optional first sort operator */
- sortName2); /* optional second sort operator */
+ OperatorCreate(oprName, /* operator name */
+ typeName1, /* first type name */
+ typeName2, /* second type name */
+ functionName, /* function for operator */
+ precedence, /* operator precedence */
+ isLeftAssociative, /* operator is left associative */
+ commutatorName, /* optional commutator operator name */
+ negatorName, /* optional negator operator name */
+ restrictionName, /* optional restrict. sel. procedure */
+ joinName, /* optional join sel. procedure name */
+ canHash, /* operator hashes */
+ sortName1, /* optional first sort operator */
+ sortName2); /* optional second sort operator */
}
List *pl;
foreach (pl, parameters) {
- DefElem *defel = (DefElem *)lfirst(pl);
-
- /*
- * sfunc1
- */
- if (!strcasecmp(defel->defname, "sfunc1")) {
- stepfunc1Name = defGetString(defel);
- } else if (!strcasecmp(defel->defname, "basetype")) {
- baseType = defGetString(defel);
- } else if (!strcasecmp(defel->defname, "stype1")) {
- stepfunc1Type = defGetString(defel);
-
- /*
- * sfunc2
- */
- } else if (!strcasecmp(defel->defname, "sfunc2")) {
- stepfunc2Name = defGetString(defel);
- } else if (!strcasecmp(defel->defname, "stype2")) {
- stepfunc2Type = defGetString(defel);
- /*
- * final
- */
- } else if (!strcasecmp(defel->defname, "finalfunc")) {
- finalfuncName = defGetString(defel);
- /*
- * initial conditions
- */
- } else if (!strcasecmp(defel->defname, "initcond1")) {
- init1 = defGetString(defel);
- } else if (!strcasecmp(defel->defname, "initcond2")) {
- init2 = defGetString(defel);
- } else {
- elog(NOTICE, "DefineAggregate: attribute \"%s\" not recognized",
- defel->defname);
- }
+ DefElem *defel = (DefElem *)lfirst(pl);
+
+ /*
+ * sfunc1
+ */
+ if (!strcasecmp(defel->defname, "sfunc1")) {
+ stepfunc1Name = defGetString(defel);
+ } else if (!strcasecmp(defel->defname, "basetype")) {
+ baseType = defGetString(defel);
+ } else if (!strcasecmp(defel->defname, "stype1")) {
+ stepfunc1Type = defGetString(defel);
+
+ /*
+ * sfunc2
+ */
+ } else if (!strcasecmp(defel->defname, "sfunc2")) {
+ stepfunc2Name = defGetString(defel);
+ } else if (!strcasecmp(defel->defname, "stype2")) {
+ stepfunc2Type = defGetString(defel);
+ /*
+ * final
+ */
+ } else if (!strcasecmp(defel->defname, "finalfunc")) {
+ finalfuncName = defGetString(defel);
+ /*
+ * initial conditions
+ */
+ } else if (!strcasecmp(defel->defname, "initcond1")) {
+ init1 = defGetString(defel);
+ } else if (!strcasecmp(defel->defname, "initcond2")) {
+ init2 = defGetString(defel);
+ } else {
+ elog(NOTICE, "DefineAggregate: attribute \"%s\" not recognized",
+ defel->defname);
+ }
}
/*
* make sure we have our required definitions
*/
if (baseType==NULL)
- elog(WARN, "Define: \"basetype\" unspecified");
+ elog(WARN, "Define: \"basetype\" unspecified");
if (stepfunc1Name!=NULL) {
- if (stepfunc1Type==NULL)
- elog(WARN, "Define: \"stype1\" unspecified");
+ if (stepfunc1Type==NULL)
+ elog(WARN, "Define: \"stype1\" unspecified");
}
if (stepfunc2Name!=NULL) {
- if (stepfunc2Type==NULL)
- elog(WARN, "Define: \"stype2\" unspecified");
+ if (stepfunc2Type==NULL)
+ elog(WARN, "Define: \"stype2\" unspecified");
}
/*
* Most of the argument-checking is done inside of AggregateCreate
*/
- AggregateCreate(aggName, /* aggregate name */
- stepfunc1Name, /* first step function name */
- stepfunc2Name, /* second step function name */
- finalfuncName, /* final function name */
- baseType, /* type of object being aggregated */
- stepfunc1Type, /* return type of first function */
- stepfunc2Type, /* return type of second function */
- init1, /* first initial condition */
- init2); /* second initial condition */
+ AggregateCreate(aggName, /* aggregate name */
+ stepfunc1Name, /* first step function name */
+ stepfunc2Name, /* second step function name */
+ finalfuncName, /* final function name */
+ baseType, /* type of object being aggregated */
+ stepfunc1Type, /* return type of first function */
+ stepfunc2Type, /* return type of second function */
+ init1, /* first initial condition */
+ init2); /* second initial condition */
/* XXX free palloc'd memory */
}
/*
* DefineType --
- * Registers a new type.
+ * Registers a new type.
*
*/
void
DefineType(char *typeName, List *parameters)
{
- int16 internalLength= 0; /* int2 */
- int16 externalLength= 0; /* int2 */
+ int16 internalLength= 0; /* int2 */
+ int16 externalLength= 0; /* int2 */
char *elemName = NULL;
char *inputName = NULL;
char *outputName = NULL;
char *sendName = NULL;
char *receiveName = NULL;
- char *defaultValue = NULL; /* Datum */
- bool byValue = false;
- char delimiter = DEFAULT_TYPDELIM;
+ char *defaultValue = NULL; /* Datum */
+ bool byValue = false;
+ char delimiter = DEFAULT_TYPDELIM;
char *shadow_type;
- List *pl;
- char alignment = 'i'; /* default alignment */
+ List *pl;
+ char alignment = 'i'; /* default alignment */
/*
* Type names can only be 15 characters long, so that the shadow type
* can be created using the 16th character as necessary.
*/
if (strlen(typeName) >= (NAMEDATALEN - 1)) {
- elog(WARN, "DefineType: type names must be %d characters or less",
- NAMEDATALEN - 1);
+ elog(WARN, "DefineType: type names must be %d characters or less",
+ NAMEDATALEN - 1);
}
foreach(pl, parameters) {
- DefElem *defel = (DefElem*)lfirst(pl);
-
- if (!strcasecmp(defel->defname, "internallength")) {
- internalLength = defGetTypeLength(defel);
- }else if (!strcasecmp(defel->defname, "externallength")) {
- externalLength = defGetTypeLength(defel);
- }else if (!strcasecmp(defel->defname, "input")) {
- inputName = defGetString(defel);
- }else if (!strcasecmp(defel->defname, "output")) {
- outputName = defGetString(defel);
- }else if (!strcasecmp(defel->defname, "send")) {
- sendName = defGetString(defel);
- }else if (!strcasecmp(defel->defname, "delimiter")) {
- char *p = defGetString(defel);
- delimiter = p[0];
- }else if (!strcasecmp(defel->defname, "receive")) {
- receiveName = defGetString(defel);
- }else if (!strcasecmp(defel->defname, "element")) {
- elemName = defGetString(defel);
- }else if (!strcasecmp(defel->defname, "default")) {
- defaultValue = defGetString(defel);
- }else if (!strcasecmp(defel->defname, "passedbyvalue")) {
- byValue = true;
- }else if (!strcasecmp(defel->defname, "alignment")) {
- char *a = defGetString(defel);
- if (!strcasecmp(a, "double")) {
- alignment = 'd';
- } else if (!strcasecmp(a, "int")) {
- alignment = 'i';
- } else {
- elog(WARN, "DefineType: \"%s\" alignment not recognized",
- a);
- }
- }else {
- elog(NOTICE, "DefineType: attribute \"%s\" not recognized",
- defel->defname);
- }
+ DefElem *defel = (DefElem*)lfirst(pl);
+
+ if (!strcasecmp(defel->defname, "internallength")) {
+ internalLength = defGetTypeLength(defel);
+ }else if (!strcasecmp(defel->defname, "externallength")) {
+ externalLength = defGetTypeLength(defel);
+ }else if (!strcasecmp(defel->defname, "input")) {
+ inputName = defGetString(defel);
+ }else if (!strcasecmp(defel->defname, "output")) {
+ outputName = defGetString(defel);
+ }else if (!strcasecmp(defel->defname, "send")) {
+ sendName = defGetString(defel);
+ }else if (!strcasecmp(defel->defname, "delimiter")) {
+ char *p = defGetString(defel);
+ delimiter = p[0];
+ }else if (!strcasecmp(defel->defname, "receive")) {
+ receiveName = defGetString(defel);
+ }else if (!strcasecmp(defel->defname, "element")) {
+ elemName = defGetString(defel);
+ }else if (!strcasecmp(defel->defname, "default")) {
+ defaultValue = defGetString(defel);
+ }else if (!strcasecmp(defel->defname, "passedbyvalue")) {
+ byValue = true;
+ }else if (!strcasecmp(defel->defname, "alignment")) {
+ char *a = defGetString(defel);
+ if (!strcasecmp(a, "double")) {
+ alignment = 'd';
+ } else if (!strcasecmp(a, "int")) {
+ alignment = 'i';
+ } else {
+ elog(WARN, "DefineType: \"%s\" alignment not recognized",
+ a);
+ }
+ }else {
+ elog(NOTICE, "DefineType: attribute \"%s\" not recognized",
+ defel->defname);
+ }
}
/*
* make sure we have our required definitions
*/
if (inputName==NULL)
- elog(WARN, "Define: \"input\" unspecified");
+ elog(WARN, "Define: \"input\" unspecified");
if (outputName==NULL)
- elog(WARN, "Define: \"output\" unspecified");
+ elog(WARN, "Define: \"output\" unspecified");
/* ----------------
- * now have TypeCreate do all the real work.
+ * now have TypeCreate do all the real work.
* ----------------
*/
- (void) TypeCreate(typeName, /* type name */
- InvalidOid, /* relation oid (n/a here) */
- internalLength, /* internal size */
- externalLength, /* external size */
- 'b', /* type-type (base type) */
- delimiter, /* array element delimiter */
- inputName, /* input procedure */
- outputName, /* output procedure */
- sendName, /* send procedure */
- receiveName, /* receive procedure */
- elemName, /* element type name */
- defaultValue, /* default type value */
- byValue, /* passed by value */
- alignment);
+ (void) TypeCreate(typeName, /* type name */
+ InvalidOid, /* relation oid (n/a here) */
+ internalLength, /* internal size */
+ externalLength, /* external size */
+ 'b', /* type-type (base type) */
+ delimiter, /* array element delimiter */
+ inputName, /* input procedure */
+ outputName, /* output procedure */
+ sendName, /* send procedure */
+ receiveName, /* receive procedure */
+ elemName, /* element type name */
+ defaultValue, /* default type value */
+ byValue, /* passed by value */
+ alignment);
/* ----------------
* When we create a true type (as opposed to a complex type)
*/
shadow_type = makeArrayTypeName(typeName);
- (void) TypeCreate(shadow_type, /* type name */
- InvalidOid, /* relation oid (n/a here) */
- -1, /* internal size */
- -1, /* external size */
- 'b', /* type-type (base type) */
- DEFAULT_TYPDELIM, /* array element delimiter */
- "array_in", /* input procedure */
- "array_out", /* output procedure */
- "array_out", /* send procedure */
- "array_in", /* receive procedure */
- typeName, /* element type name */
- defaultValue, /* default type value */
- false, /* never passed by value */
- alignment);
+ (void) TypeCreate(shadow_type, /* type name */
+ InvalidOid, /* relation oid (n/a here) */
+ -1, /* internal size */
+ -1, /* external size */
+ 'b', /* type-type (base type) */
+ DEFAULT_TYPDELIM, /* array element delimiter */
+ "array_in", /* input procedure */
+ "array_out", /* output procedure */
+ "array_out", /* send procedure */
+ "array_in", /* receive procedure */
+ typeName, /* element type name */
+ defaultValue, /* default type value */
+ false, /* never passed by value */
+ alignment);
pfree(shadow_type);
}
defGetString(DefElem *def)
{
if (nodeTag(def->arg)!=T_String)
- elog(WARN, "Define: \"%s\" = what?", def->defname);
+ elog(WARN, "Define: \"%s\" = what?", def->defname);
return (strVal(def->arg));
}
defGetTypeLength(DefElem *def)
{
if (nodeTag(def->arg)==T_Integer)
- return (intVal(def->arg));
+ return (intVal(def->arg));
else if (nodeTag(def->arg)==T_String &&
- !strcasecmp(strVal(def->arg),"variable"))
- return -1; /* variable length */
+ !strcasecmp(strVal(def->arg),"variable"))
+ return -1; /* variable length */
elog(WARN, "Define: \"%s\" = what?", def->defname);
return -1;
projects / thirdparty / postgresql.git / commitdiff
