Compiler Rewrite Example¶
IBM. Compiler Rewrite Example: Operation Movement — Predicate Pushdown for Combined SQL/XQuery Statements. IBM Db2 Documentation.
Cited by¶
1 citation across 1 artifact.
Each citation links to the sentence it supports in the citing article.
Mechanisms¶
- Conjunctive Filter Pipeline
- It is the practical embodiment of predicate pushdown — evaluating the cheapest, most-selective condition as early as possible to shrink the working set.
This sourceExplains predicate pushdown as moving a predicate lower in the query so filtering occurs sooner and can reduce later processing.
- It is the practical embodiment of predicate pushdown — evaluating the cheapest, most-selective condition as early as possible to shrink the working set.
Verification¶
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Registry ID ref:ac39172f8813 · see in the full table