From 73b7f48f78d27b1baf1a6541cbaae0fe6bd6186d Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Sun, 10 Jun 2018 15:22:25 -0400 Subject: Improve run-time partition pruning to handle any stable expression. The initial coding of the run-time-pruning feature only coped with cases where the partition key(s) are compared to Params. That is a bit silly; we can allow it to work with any non-Var-containing stable expression, as long as we take special care with expressions containing PARAM_EXEC Params. The code is hardly any longer this way, and it's considerably clearer (IMO at least). Per gripe from Pavel Stehule. David Rowley, whacked around a bit by me Discussion: https://postgr.es/m/CAFj8pRBjrufA3ocDm8o4LPGNye9Y+pm1b9kCwode4X04CULG3g@mail.gmail.com --- src/backend/nodes/readfuncs.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'src/backend/nodes/readfuncs.c') diff --git a/src/backend/nodes/readfuncs.c b/src/backend/nodes/readfuncs.c index 2826cec2f8f..da58aad4b32 100644 --- a/src/backend/nodes/readfuncs.c +++ b/src/backend/nodes/readfuncs.c @@ -1363,10 +1363,13 @@ _readPartitionPruneInfo(void) READ_NODE_FIELD(pruning_steps); READ_BITMAPSET_FIELD(present_parts); READ_INT_FIELD(nparts); + READ_INT_FIELD(nexprs); READ_INT_ARRAY(subnode_map, local_node->nparts); READ_INT_ARRAY(subpart_map, local_node->nparts); - READ_BITMAPSET_FIELD(extparams); - READ_BITMAPSET_FIELD(execparams); + READ_BOOL_ARRAY(hasexecparam, local_node->nexprs); + READ_BOOL_FIELD(do_initial_prune); + READ_BOOL_FIELD(do_exec_prune); + READ_BITMAPSET_FIELD(execparamids); READ_DONE(); } -- cgit v1.2.3