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Prevent infinite recursion of in the query planner for some pathological

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test cases by disabling OR-clause processing upon first recursion.

FossilOrigin-Name: 9fca05eac503d712886a05d03794f76c61fb39ed
This commit is contained in:
drh
2011-10-07 14:40:59 +00:00
parent 8871ef5afd
commit 9ef61f4f4e
4 changed files with 27 additions and 24 deletions
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8
src/sqliteInt.h
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@@ -1979,10 +1979,10 @@ struct WhereLevel {
#define WHERE_ORDERBY_MAX 0x0002 /* ORDER BY processing for max() func */
#define WHERE_ONEPASS_DESIRED 0x0004 /* Want to do one-pass UPDATE/DELETE */
#define WHERE_DUPLICATES_OK 0x0008 /* Ok to return a row more than once */
#define WHERE_OMIT_OPEN 0x0010 /* Table cursors are already open */
#define WHERE_OMIT_CLOSE 0x0020 /* Omit close of table & index cursors */
#define WHERE_FORCE_TABLE 0x0040 /* Do not use an index-only search */
#define WHERE_ONETABLE_ONLY 0x0080 /* Only code the 1st table in pTabList */
#define WHERE_OMIT_OPEN_CLOSE 0x0010 /* Table cursors are already open */
#define WHERE_FORCE_TABLE 0x0020 /* Do not use an index-only search */
#define WHERE_ONETABLE_ONLY 0x0040 /* Only code the 1st table in pTabList */
#define WHERE_AND_ONLY 0x0080 /* Don't use indices for OR terms */
/*
** The WHERE clause processing routine has two halves. The