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Performance Guide: Prefer CTAS to ALTER TABLE #3060

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4 changes: 4 additions & 0 deletions docs/guides/performance/schema.md
Original file line number Diff line number Diff line change
Expand Up @@ -84,3 +84,7 @@ We illustrate the effect of using primary keys with the [LDBC Comment table at s
In this case, primary keys will only have a (small) positive effect on highly selective queries such as when filtering on a single identifier. They do not have an effect on join and aggregation operators.

> Bestpractice For best bulk load performance, avoid defining primary key constraints if possible.

## Schema Changes

When making changes to the schema, prefer using [`CREATE TABLE ... AS SELECT`](../../sql/statements/create_table#create-table--as-select-ctas) to [`ALTER TABLE`](../../sql/statements/alter_table).