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Add new sqlite3_prepare_v3() flag SQLITE_PREPARE_NO_VTAB, for preparing

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statements that are not allowed to use any virtual tables. Use this to prevent
circular references in triggers on virtual table shadow tables from causing
resource leaks.

FossilOrigin-Name: 25666e3d03950caf753295cdb55df162e07dbcf6840b05875c6e0b127c469ecb
This commit is contained in:
dan
2018-12-21 19:29:11 +00:00
parent afdc9e23fc
commit 1ea0443c2d
11 changed files with 68 additions and 47 deletions
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src/prepare.c
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@@ -545,6 +545,7 @@ static int sqlite3Prepare(
sParse.disableLookaside++;
db->lookaside.bDisable++;
}
sParse.disableVtab = (prepFlags & SQLITE_PREPARE_NO_VTAB)!=0;
/* Check to verify that it is possible to get a read lock on all
** database schemas. The inability to get a read lock indicates that