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History of ext/misc/explain.c

2018-11-16
19:19
Update the explain virtual table to make use of SQLITE_CONSTRAINT. file: [d5c12962] check-in: [b2d41ff7] user: drh branch: trunk, size: 9815
2018-11-05
23:01
Initial code to make shadow tables read-only to ordinary SQL. The now xShadowName method is added to the sqlite3_module object and is used to identify potential shadow tables. The SQLITE_PREPARE_SHADOW argument to sqlite3_prepare_v3() is defined. It is designed to permit writing to shadow tables, but is currently an unused placeholder. file: [c82dd86f] check-in: [31942b3d] user: drh branch: read-only-shadow, size: 9208
2018-09-16
16:34
Fix a memory leak in the explain extension. file: [5851a1a4] check-in: [d0c92b04] user: drh branch: trunk, size: 9161
16:18
Add the new "explain" virtual table in ext/misc. Use this virtual table for additional test cases for the optimization that avoids updating indexes on expressions when none of the columns changed by the UPDATE are in the expression. file: [657b9585] check-in: [2404304c] user: drh branch: trunk, size: 9137 Added