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Type:
Improvement
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Status: Resolved
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: Impala 2.8.0
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Fix Version/s: Impala 4.0
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Component/s: Backend
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Labels:
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Epic Link:
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Target Version:
With multithreading, we should find a way to share codegen modules between fragment instances to avoid redundant compilation, optimisation, etc.
- breaks
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IMPALA-6262 Crash Impalad [ DataSink::Create fail which cause profile nullptr ]
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- Resolved
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- incorporates
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IMPALA-5192 Avoid hard coding pointer to the tuple pool into generated IR of Tuple::CodegenMaterializeExprs()
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- Resolved
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- is blocked by
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IMPALA-4008 Generate codegen module without operator/query-specific constants
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- Resolved
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IMPALA-4192 Pull all expressions in a fragment into QueryState
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- Resolved
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IMPALA-4108 Move cached set_is_null/is_null/etc functions from SlotDescriptor to LlvmCodeGen
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- Resolved
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- is related to
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IMPALA-5356 Move Expr's fragment local states from ExprContext to Expr
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- Open
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- relates to
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IMPALA-9216 Pull the rest of the fragment level state out of the exec nodes after IMPALA-4192
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- Open
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