diff options
Diffstat (limited to 'src/backend/commands/analyze.c')
| -rw-r--r-- | src/backend/commands/analyze.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/backend/commands/analyze.c b/src/backend/commands/analyze.c index 2754a6db6a..d77aec2dd7 100644 --- a/src/backend/commands/analyze.c +++ b/src/backend/commands/analyze.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/commands/analyze.c,v 1.107 2007/04/30 03:23:48 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/commands/analyze.c,v 1.108 2007/05/30 20:11:56 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -63,10 +63,13 @@ typedef struct AnlIndexData /* Default statistics target (GUC parameter) */ int default_statistics_target = 10; +/* A few variables that don't seem worth passing around as parameters */ static int elevel = -1; static MemoryContext anl_context = NULL; +static BufferAccessStrategy vac_strategy; + static void BlockSampler_Init(BlockSampler bs, BlockNumber nblocks, int samplesize); @@ -94,7 +97,8 @@ static bool std_typanalyze(VacAttrStats *stats); * analyze_rel() -- analyze one relation */ void -analyze_rel(Oid relid, VacuumStmt *vacstmt) +analyze_rel(Oid relid, VacuumStmt *vacstmt, + BufferAccessStrategy bstrategy) { Relation onerel; int attr_cnt, @@ -120,6 +124,8 @@ analyze_rel(Oid relid, VacuumStmt *vacstmt) else elevel = DEBUG2; + vac_strategy = bstrategy; + /* * Use the current context for storing analysis info. vacuum.c ensures * that this context will be cleared when I return, thus releasing the @@ -845,7 +851,7 @@ acquire_sample_rows(Relation onerel, HeapTuple *rows, int targrows, * looking at it. We don't maintain a lock on the page, so tuples * could get added to it, but we ignore such tuples. */ - targbuffer = ReadBuffer(onerel, targblock); + targbuffer = ReadBufferWithStrategy(onerel, targblock, vac_strategy); LockBuffer(targbuffer, BUFFER_LOCK_SHARE); targpage = BufferGetPage(targbuffer); maxoffset = PageGetMaxOffsetNumber(targpage); |