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Enable query planner tracing using the new (and undocumented) ".wheretrace 1"

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command in the command-line shell if both the shell and the core are
compiled with SQLITE_DEBUG and SQLITE_ENABLE_WHERETRACE.  This is not a 
supported API. Use for testing and debugging only.

FossilOrigin-Name: 1be4b16b9e900181ae6848f2920ea646f407c9dc
This commit is contained in:
drh
2012-09-21 22:50:45 +00:00
parent 078b1fda34
commit cef4fc89c4
4 changed files with 18 additions and 10 deletions
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5
src/where.c
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@@ -23,9 +23,10 @@
** Trace output macros
*/
#if defined(SQLITE_TEST) || defined(SQLITE_DEBUG)
int sqlite3WhereTrace = 0;
/***/ int sqlite3WhereTrace = 0;
#endif
#if defined(SQLITE_TEST) && defined(SQLITE_DEBUG)
#if defined(SQLITE_DEBUG) \
&& (defined(SQLITE_TEST) || defined(SQLITE_ENABLE_WHERETRACE))
# define WHERETRACE(X) if(sqlite3WhereTrace) sqlite3DebugPrintf X
#else
# define WHERETRACE(X)