8 Commits

Author	SHA1	Message	Date
drh	af03eb3241	Enable the count-of-view optimization by default. ... Enhancement request [eaed8e36ce888f1e]. FossilOrigin-Name: a4aacdd323a854d771c8cb1e2e4cfc4fb66b0020cfed23525733603605f5c63b	2023-02-22 21:47:02 +00:00
drh	bcb3215630	Remove the push-down optimization restriction that was added by ... check-in [1ad41840c5e0fa70] because it is no longer needed after the enhancements to compound query processing in check-in [27655c9353620aa5] This resolves the performance regression reported by [forum:/forumpost/bcc4375032|forum post bcc4375032]. FossilOrigin-Name: aa6bd6dff751223e302575c60f335707e4bb820bff716cab3706b564e18ed7ed	2023-02-22 20:42:15 +00:00
drh	ed07d0ea76	If the SELECT that implements a subquery or a VIEW or a CREATE TABLE AS is ... a compound with different result datatypes on two or more arms of the compound, then the overall column type becomes BLOB (ANY). FossilOrigin-Name: 6ebb178c6b688ebd632e91a5ec4c748567833037c679ab3d72fb770deb230fe1	2022-12-14 14:41:35 +00:00
drh	a8b5c8739c	Back out the part of the change in [88a05141c28e5ff1] that adds affinity to ... the materialization of a view, as the affinity can be undefined for a compound query. This passes all TCL tests, but shows failures in the TH3 tests derived from [forum:/forumpost/6f842bc5b2dadcb2|forum post 6f842bc5b2dadcb2], presumably because the WHERE clause of the query uses constraints of the form "source_crs_code='8675'" instead of "source_crs_code=8675". Perhaps further changes on this branch should reimplement affinity on joins in cases where the affinity is unambiguous. FossilOrigin-Name: fe5a77bcc4de8f49cc4fe6bd2e2e1f31da8d3bc84120daaa99eb853b06291d15	2022-12-14 09:06:45 +00:00
drh	23f61a4ba8	Add restriction (9) to the push-down optimization: If the subquery is ... a compound then all arms of the compound must have the same affinity. dbsqlfuzz 3a548de406a50e896c1bf7142692d35d339d697f. FossilOrigin-Name: 1ad41840c5e0fa702ba2c0df77a3ea126bd695b910b5d1271fa3129c38c58f5f	2022-11-25 15:52:00 +00:00
mistachkin	885f410472	Remove some 'breakpoint' commands in test files. ... FossilOrigin-Name: d14fc621e918915bbf8e04597eb238ea78dff3d9c5eb4402cb88692d00dbdfee	2017-07-19 18:01:42 +00:00
dan	d3930b1266	Fix another problem on this branch. ... FossilOrigin-Name: a4fc98113aeb10860834f68a2fdcef690ea15d8303d23b6dd416994a4b7edab6	2017-07-10 15:17:30 +00:00
dan	6f654a40e8	Within a loop that uses a non-covering index test, test non-indexed terms that ... can be tested without seeking the main table cursor before those that cannot. FossilOrigin-Name: afe68f0a8060dc5c92cb1fb32a9f22bd36140cd2c0bb5b6cea853e169c5ed444	2017-04-28 19:59:55 +00:00