-C Add\sthe\ssqlite3Show()\sfamily\sof\sdebugging\sinterfaces\sunder\sSQLITE_DEBUG.\nNo\schanges\sto\sdeliverable\sbuilds.\s\sRename\sSQLITE_ENABLE_SELECTTRACE\sto\nSQLITE_ENABLE_TREETRACE\sin\sctime.c.
-D 2022-04-06T12:25:04.844
+C Corrections\sand\supdates\sto\sthe\sheader\scomment\sdescribing\sthe\nTriggerStep\sobject.\s\sNo\schanges\sto\scode.
+D 2022-04-06T12:54:41.675
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F src/sqliteLimit.h d7323ffea5208c6af2734574bae933ca8ed2ab728083caa117c9738581a31657
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U drh
-Z 533350b01dcc82c38ad1e7fcaa045f9f
+Z 6f432e2a1d80c3ecd80c5f978baed379
# Remove this line to create a well-formed Fossil manifest.
#define OPFLAG_PREFORMAT 0x80 /* OP_Insert uses preformatted cell */
/*
- * Each trigger present in the database schema is stored as an instance of
- * struct Trigger.
- *
- * Pointers to instances of struct Trigger are stored in two ways.
- * 1. In the "trigHash" hash table (part of the sqlite3* that represents the
- * database). This allows Trigger structures to be retrieved by name.
- * 2. All triggers associated with a single table form a linked list, using the
- * pNext member of struct Trigger. A pointer to the first element of the
- * linked list is stored as the "pTrigger" member of the associated
- * struct Table.
- *
- * The "step_list" member points to the first element of a linked list
- * containing the SQL statements specified as the trigger program.
- */
+** Each trigger present in the database schema is stored as an instance of
+** struct Trigger.
+**
+** Pointers to instances of struct Trigger are stored in two ways.
+** 1. In the "trigHash" hash table (part of the sqlite3* that represents the
+** database). This allows Trigger structures to be retrieved by name.
+** 2. All triggers associated with a single table form a linked list, using the
+** pNext member of struct Trigger. A pointer to the first element of the
+** linked list is stored as the "pTrigger" member of the associated
+** struct Table.
+**
+** The "step_list" member points to the first element of a linked list
+** containing the SQL statements specified as the trigger program.
+*/
struct Trigger {
char *zName; /* The name of the trigger */
char *table; /* The table or view to which the trigger applies */
#define TRIGGER_AFTER 2
/*
- * An instance of struct TriggerStep is used to store a single SQL statement
- * that is a part of a trigger-program.
- *
- * Instances of struct TriggerStep are stored in a singly linked list (linked
- * using the "pNext" member) referenced by the "step_list" member of the
- * associated struct Trigger instance. The first element of the linked list is
- * the first step of the trigger-program.
- *
- * The "op" member indicates whether this is a "DELETE", "INSERT", "UPDATE" or
- * "SELECT" statement. The meanings of the other members is determined by the
- * value of "op" as follows:
- *
- * (op == TK_INSERT)
- * orconf -> stores the ON CONFLICT algorithm
- * pSelect -> If this is an INSERT INTO ... SELECT ... statement, then
- * this stores a pointer to the SELECT statement. Otherwise NULL.
- * zTarget -> Dequoted name of the table to insert into.
- * pExprList -> If this is an INSERT INTO ... VALUES ... statement, then
- * this stores values to be inserted. Otherwise NULL.
- * pIdList -> If this is an INSERT INTO ... (<column-names>) VALUES ...
- * statement, then this stores the column-names to be
- * inserted into.
- *
- * (op == TK_DELETE)
- * zTarget -> Dequoted name of the table to delete from.
- * pWhere -> The WHERE clause of the DELETE statement if one is specified.
- * Otherwise NULL.
- *
- * (op == TK_UPDATE)
- * zTarget -> Dequoted name of the table to update.
- * pWhere -> The WHERE clause of the UPDATE statement if one is specified.
- * Otherwise NULL.
- * pExprList -> A list of the columns to update and the expressions to update
- * them to. See sqlite3Update() documentation of "pChanges"
- * argument.
- *
- */
+** An instance of struct TriggerStep is used to store a single SQL statement
+** that is a part of a trigger-program.
+**
+** Instances of struct TriggerStep are stored in a singly linked list (linked
+** using the "pNext" member) referenced by the "step_list" member of the
+** associated struct Trigger instance. The first element of the linked list is
+** the first step of the trigger-program.
+**
+** The "op" member indicates whether this is a "DELETE", "INSERT", "UPDATE" or
+** "SELECT" statement. The meanings of the other members is determined by the
+** value of "op" as follows:
+**
+** (op == TK_INSERT)
+** orconf -> stores the ON CONFLICT algorithm
+** pSelect -> The content to be inserted - either a SELECT statement or
+** a VALUES clause.
+** zTarget -> Dequoted name of the table to insert into.
+** pIdList -> If this is an INSERT INTO ... (<column-names>) VALUES ...
+** statement, then this stores the column-names to be
+** inserted into.
+** pUpsert -> The ON CONFLICT clauses for an Upsert
+**
+** (op == TK_DELETE)
+** zTarget -> Dequoted name of the table to delete from.
+** pWhere -> The WHERE clause of the DELETE statement if one is specified.
+** Otherwise NULL.
+**
+** (op == TK_UPDATE)
+** zTarget -> Dequoted name of the table to update.
+** pWhere -> The WHERE clause of the UPDATE statement if one is specified.
+** Otherwise NULL.
+** pExprList -> A list of the columns to update and the expressions to update
+** them to. See sqlite3Update() documentation of "pChanges"
+** argument.
+**
+** (op == TK_SELECT)
+** pSelect -> The SELECT statement
+**
+** (op == TK_RETURNING)
+** pExprList -> The list of expressions that follow the RETURNING keyword.
+**
+*/
struct TriggerStep {
u8 op; /* One of TK_DELETE, TK_UPDATE, TK_INSERT, TK_SELECT,
** or TK_RETURNING */
projects / thirdparty / sqlite.git / commitdiff
