2 Commits

Author	SHA1	Message	Date
Simon Riggs	f6d208d6e5	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	2015-05-15 14:37:10 -04:00
Simon Riggs	83e176ec18	Separate block sampling functions ... Refactoring ahead of tablesample patch Requested and reviewed by Michael Paquier Petr Jelinek	2015-05-15 04:02:54 +02:00