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Defer materializing a view or subquery until the materialization is actually

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needed, so that if it is not needed, not useless work is performed.

FossilOrigin-Name: 16bf350683fd6ac906dbd02b21fb8bf1b1014ed05594cacf108645acd383ae65
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drh
2022-05-21 18:03:33 +00:00
parent 660dfbdcfb
commit 40822eb262
5 changed files with 26 additions and 13 deletions
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src/sqliteInt.h
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@@ -3093,6 +3093,7 @@ struct SrcItem {
unsigned isIndexedBy :1; /* True if there is an INDEXED BY clause */
unsigned isTabFunc :1; /* True if table-valued-function syntax */
unsigned isCorrelated :1; /* True if sub-query is correlated */
unsigned isMaterialized:1; /* This is a materialized view */
unsigned viaCoroutine :1; /* Implemented as a co-routine */
unsigned isRecursive :1; /* True for recursive reference in WITH */
unsigned fromDDL :1; /* Comes from sqlite_schema */