From f6d208d6e51810c73f0e02c477984a6b44627f11 Mon Sep 17 00:00:00 2001 From: Simon Riggs Date: Fri, 15 May 2015 14:37:10 -0400 Subject: TABLESAMPLE, SQL Standard and extensible Add a TABLESAMPLE clause to SELECT statements that allows user to specify random BERNOULLI sampling or block level SYSTEM sampling. Implementation allows for extensible sampling functions to be written, using a standard API. Basic version follows SQLStandard exactly. Usable concrete use cases for the sampling API follow in later commits. Petr Jelinek Reviewed by Michael Paquier and Simon Riggs --- src/include/utils/syscache.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'src/include/utils/syscache.h') diff --git a/src/include/utils/syscache.h b/src/include/utils/syscache.h index 6634099cbe2..2dbd38488b6 100644 --- a/src/include/utils/syscache.h +++ b/src/include/utils/syscache.h @@ -81,6 +81,8 @@ enum SysCacheIdentifier REPLORIGNAME, RULERELNAME, STATRELATTINH, + TABLESAMPLEMETHODNAME, + TABLESAMPLEMETHODOID, TABLESPACEOID, TRFOID, TRFTYPELANG, -- cgit v1.2.3