#include "catalog/pg_authid_d.h"
#include "catalog/pg_cast_d.h"
#include "catalog/pg_class_d.h"
+#include "catalog/pg_constraint_d.h"
#include "catalog/pg_default_acl_d.h"
#include "catalog/pg_largeobject_d.h"
#include "catalog/pg_largeobject_metadata_d.h"
*/
tyinfo[i].nDomChecks = 0;
tyinfo[i].domChecks = NULL;
+ tyinfo[i].notnull = NULL;
if ((tyinfo[i].dobj.dump & DUMP_COMPONENT_DEFINITION) &&
tyinfo[i].typtype == TYPTYPE_DOMAIN)
getDomainConstraints(fout, &(tyinfo[i]));
static void
getDomainConstraints(Archive *fout, TypeInfo *tyinfo)
{
- int i;
ConstraintInfo *constrinfo;
PQExpBuffer query = createPQExpBuffer();
PGresult *res;
int i_tableoid,
i_oid,
i_conname,
- i_consrc;
+ i_consrc,
+ i_convalidated,
+ i_contype;
int ntups;
if (!fout->is_prepared[PREPQUERY_GETDOMAINCONSTRAINTS])
{
- /* Set up query for constraint-specific details */
- appendPQExpBufferStr(query,
- "PREPARE getDomainConstraints(pg_catalog.oid) AS\n"
- "SELECT tableoid, oid, conname, "
- "pg_catalog.pg_get_constraintdef(oid) AS consrc, "
- "convalidated "
- "FROM pg_catalog.pg_constraint "
- "WHERE contypid = $1 AND contype = 'c' "
- "ORDER BY conname");
+ /*
+ * Set up query for constraint-specific details. For servers 17 and
+ * up, domains have constraints of type 'n' as well as 'c', otherwise
+ * just the latter.
+ */
+ appendPQExpBuffer(query,
+ "PREPARE getDomainConstraints(pg_catalog.oid) AS\n"
+ "SELECT tableoid, oid, conname, "
+ "pg_catalog.pg_get_constraintdef(oid) AS consrc, "
+ "convalidated, contype "
+ "FROM pg_catalog.pg_constraint "
+ "WHERE contypid = $1 AND contype IN (%s) "
+ "ORDER BY conname",
+ fout->remoteVersion < 170000 ? "'c'" : "'c', 'n'");
ExecuteSqlStatement(fout, query->data);
i_oid = PQfnumber(res, "oid");
i_conname = PQfnumber(res, "conname");
i_consrc = PQfnumber(res, "consrc");
+ i_convalidated = PQfnumber(res, "convalidated");
+ i_contype = PQfnumber(res, "contype");
constrinfo = (ConstraintInfo *) pg_malloc(ntups * sizeof(ConstraintInfo));
-
- tyinfo->nDomChecks = ntups;
tyinfo->domChecks = constrinfo;
- for (i = 0; i < ntups; i++)
+ /* 'i' tracks result rows; 'j' counts CHECK constraints */
+ for (int i = 0, j = 0; i < ntups; i++)
{
- bool validated = PQgetvalue(res, i, 4)[0] == 't';
-
- constrinfo[i].dobj.objType = DO_CONSTRAINT;
- constrinfo[i].dobj.catId.tableoid = atooid(PQgetvalue(res, i, i_tableoid));
- constrinfo[i].dobj.catId.oid = atooid(PQgetvalue(res, i, i_oid));
- AssignDumpId(&constrinfo[i].dobj);
- constrinfo[i].dobj.name = pg_strdup(PQgetvalue(res, i, i_conname));
- constrinfo[i].dobj.namespace = tyinfo->dobj.namespace;
- constrinfo[i].contable = NULL;
- constrinfo[i].condomain = tyinfo;
- constrinfo[i].contype = 'c';
- constrinfo[i].condef = pg_strdup(PQgetvalue(res, i, i_consrc));
- constrinfo[i].confrelid = InvalidOid;
- constrinfo[i].conindex = 0;
- constrinfo[i].condeferrable = false;
- constrinfo[i].condeferred = false;
- constrinfo[i].conislocal = true;
-
- constrinfo[i].separate = !validated;
+ bool validated = PQgetvalue(res, i, i_convalidated)[0] == 't';
+ char contype = (PQgetvalue(res, i, i_contype))[0];
+ ConstraintInfo *constraint;
+
+ if (contype == CONSTRAINT_CHECK)
+ {
+ constraint = &constrinfo[j++];
+ tyinfo->nDomChecks++;
+ }
+ else
+ {
+ Assert(contype == CONSTRAINT_NOTNULL);
+ Assert(tyinfo->notnull == NULL);
+ /* use last item in array for the not-null constraint */
+ tyinfo->notnull = &(constrinfo[ntups - 1]);
+ constraint = tyinfo->notnull;
+ }
+
+ constraint->dobj.objType = DO_CONSTRAINT;
+ constraint->dobj.catId.tableoid = atooid(PQgetvalue(res, i, i_tableoid));
+ constraint->dobj.catId.oid = atooid(PQgetvalue(res, i, i_oid));
+ AssignDumpId(&(constraint->dobj));
+ constraint->dobj.name = pg_strdup(PQgetvalue(res, i, i_conname));
+ constraint->dobj.namespace = tyinfo->dobj.namespace;
+ constraint->contable = NULL;
+ constraint->condomain = tyinfo;
+ constraint->contype = contype;
+ constraint->condef = pg_strdup(PQgetvalue(res, i, i_consrc));
+ constraint->confrelid = InvalidOid;
+ constraint->conindex = 0;
+ constraint->condeferrable = false;
+ constraint->condeferred = false;
+ constraint->conislocal = true;
+
+ constraint->separate = !validated;
/*
* Make the domain depend on the constraint, ensuring it won't be
* anyway, so this doesn't matter.
*/
if (validated)
- addObjectDependency(&tyinfo->dobj,
- constrinfo[i].dobj.dumpId);
+ addObjectDependency(&tyinfo->dobj, constraint->dobj.dumpId);
}
PQclear(res);
appendPQExpBuffer(q, " COLLATE %s", fmtQualifiedDumpable(coll));
}
+ /*
+ * Print a not-null constraint if there's one. In servers older than 17
+ * these don't have names, so just print it unadorned; in newer ones they
+ * do, but most of the time it's going to be the standard generated one,
+ * so omit the name in that case also.
+ */
if (typnotnull[0] == 't')
- appendPQExpBufferStr(q, " NOT NULL");
+ {
+ if (fout->remoteVersion < 170000 || tyinfo->notnull == NULL)
+ appendPQExpBufferStr(q, " NOT NULL");
+ else
+ {
+ ConstraintInfo *notnull = tyinfo->notnull;
+
+ if (!notnull->separate)
+ {
+ char *default_name;
+
+ /* XXX should match ChooseConstraintName better */
+ default_name = psprintf("%s_not_null", tyinfo->dobj.name);
+
+ if (strcmp(default_name, notnull->dobj.name) == 0)
+ appendPQExpBufferStr(q, " NOT NULL");
+ else
+ appendPQExpBuffer(q, " CONSTRAINT %s %s",
+ fmtId(notnull->dobj.name), notnull->condef);
+ free(default_name);
+ }
+ }
+ }
if (typdefault != NULL)
{
{
ConstraintInfo *domcheck = &(tyinfo->domChecks[i]);
- if (!domcheck->separate)
+ if (!domcheck->separate && domcheck->contype == 'c')
appendPQExpBuffer(q, "\n\tCONSTRAINT %s %s",
fmtId(domcheck->dobj.name), domcheck->condef);
}
destroyPQExpBuffer(conprefix);
}
+ /*
+ * And a comment on the not-null constraint, if there's one -- but only if
+ * the constraint itself was dumped here
+ */
+ if (tyinfo->notnull != NULL && !tyinfo->notnull->separate)
+ {
+ PQExpBuffer conprefix = createPQExpBuffer();
+
+ appendPQExpBuffer(conprefix, "CONSTRAINT %s ON DOMAIN",
+ fmtId(tyinfo->notnull->dobj.name));
+
+ if (tyinfo->notnull->dobj.dump & DUMP_COMPONENT_COMMENT)
+ dumpComment(fout, conprefix->data, qtypname,
+ tyinfo->dobj.namespace->dobj.name,
+ tyinfo->rolname,
+ tyinfo->notnull->dobj.catId, 0, tyinfo->dobj.dumpId);
+ destroyPQExpBuffer(conprefix);
+ }
+
destroyPQExpBuffer(q);
destroyPQExpBuffer(delq);
destroyPQExpBuffer(query);
.dropStmt = delq->data));
}
}
- else if (coninfo->contype == 'c' && tbinfo == NULL)
+ else if (tbinfo == NULL)
{
- /* CHECK constraint on a domain */
+ /* CHECK, NOT NULL constraint on a domain */
TypeInfo *tyinfo = coninfo->condomain;
+ Assert(coninfo->contype == 'c' || coninfo->contype == 'n');
+
/* Ignore if not to be dumped separately */
if (coninfo->separate)
{
+ const char *keyword;
+
+ if (coninfo->contype == 'c')
+ keyword = "CHECK CONSTRAINT";
+ else
+ keyword = "CONSTRAINT";
+
appendPQExpBuffer(q, "ALTER DOMAIN %s\n",
fmtQualifiedDumpable(tyinfo));
appendPQExpBuffer(q, " ADD CONSTRAINT %s %s;\n",
ARCHIVE_OPTS(.tag = tag,
.namespace = tyinfo->dobj.namespace->dobj.name,
.owner = tyinfo->rolname,
- .description = "CHECK CONSTRAINT",
+ .description = keyword,
.section = SECTION_POST_DATA,
.createStmt = q->data,
.dropStmt = delq->data));
projects / thirdparty / postgresql.git / commitdiff
