Optimise get row id info query (1.5)#195
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This is a backport of the PR duckdb#192 to `v1.5-variegata` stable branch. Sqlite is a lot faster at getting the `MIN(ROWID)` and `MAX(ROWID)` separately, the previous query `SELECT MIN(ROWID)`, `MAX(ROWID) FROM \"%s\"` would cause sqlite to scan the table instead of looking at either end of the B tree. The speed difference is apparent on large tables.
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This is a backport of the PR #192 to
v1.5-variegatastable branch.Sqlite is a lot faster at getting the
MIN(ROWID)andMAX(ROWID)separately, the previous querySELECT MIN(ROWID),MAX(ROWID) FROM \"%s\"would cause sqlite to scan the table instead of looking at either end of the B tree. The speed difference is apparent on large tables.