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Edit the WHEN and UPDATE OF clauses of trigger programs as part of ALTER TABLE

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RENAME COLUMN.

FossilOrigin-Name: 5fdb6b0aafba727139e1937ef5950e4434a77f95a10fc46f8010ca2de3922326
This commit is contained in:
dan
2018-08-13 17:14:26 +00:00
parent 4a2c747c4c
commit 5496d6a25a
9 changed files with 127 additions and 61 deletions
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38
src/trigger.c
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@@ -181,14 +181,16 @@ void sqlite3BeginTrigger(
goto trigger_cleanup;
}
assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
if( sqlite3HashFind(&(db->aDb[iDb].pSchema->trigHash),zName) ){
if( !noErr ){
sqlite3ErrorMsg(pParse, "trigger %T already exists", pName);
}else{
assert( !db->init.busy );
sqlite3CodeVerifySchema(pParse, iDb);
if( !IN_RENAME_COLUMN ){
if( sqlite3HashFind(&(db->aDb[iDb].pSchema->trigHash),zName) ){
if( !noErr ){
sqlite3ErrorMsg(pParse, "trigger %T already exists", pName);
}else{
assert( !db->init.busy );
sqlite3CodeVerifySchema(pParse, iDb);
}
goto trigger_cleanup;
}
goto trigger_cleanup;
}
/* Do not create a trigger on a system table */
@@ -212,7 +214,7 @@ void sqlite3BeginTrigger(
}
#ifndef SQLITE_OMIT_AUTHORIZATION
{
if( !IN_RENAME_COLUMN ){
int iTabDb = sqlite3SchemaToIndex(db, pTab->pSchema);
int code = SQLITE_CREATE_TRIGGER;
const char *zDb = db->aDb[iTabDb].zDbSName;
@@ -246,8 +248,14 @@ void sqlite3BeginTrigger(
pTrigger->pTabSchema = pTab->pSchema;
pTrigger->op = (u8)op;
pTrigger->tr_tm = tr_tm==TK_BEFORE ? TRIGGER_BEFORE : TRIGGER_AFTER;
pTrigger->pWhen = sqlite3ExprDup(db, pWhen, EXPRDUP_REDUCE);
pTrigger->pColumns = sqlite3IdListDup(db, pColumns);
if( IN_RENAME_COLUMN ){
pTrigger->pWhen = pWhen;
pWhen = 0;
}else{
pTrigger->pWhen = sqlite3ExprDup(db, pWhen, EXPRDUP_REDUCE);
}
pTrigger->pColumns = pColumns;
pColumns = 0;
assert( pParse->pNewTrigger==0 );
pParse->pNewTrigger = pTrigger;
@@ -296,6 +304,14 @@ void sqlite3FinishTrigger(
goto triggerfinish_cleanup;
}
#ifndef SQLITE_OMIT_ALTERTABLE
if( IN_RENAME_COLUMN ){
assert( !db->init.busy );
pParse->pNewTrigger = pTrig;
pTrig = 0;
}else
#endif
/* if we are not initializing,
** build the sqlite_master entry
*/
@@ -337,7 +353,7 @@ void sqlite3FinishTrigger(
triggerfinish_cleanup:
sqlite3DeleteTrigger(db, pTrig);
assert( !pParse->pNewTrigger );
assert( IN_RENAME_COLUMN || !pParse->pNewTrigger );
sqlite3DeleteTriggerStep(db, pStepList);
}