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Account for memory usage of parquet column readers #15554
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raunaqmorarka
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skrzypo987,
lukasz-stec and
sopel39
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skrzypo987
December 29, 2022 15:35
lukasz-stec
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Jan 2, 2023
lib/trino-parquet/src/test/java/io/trino/parquet/reader/TestParquetReaderMemoryUsage.java
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sopel39
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Jan 3, 2023
lib/trino-parquet/src/test/java/io/trino/parquet/reader/flat/TestFlatColumnReader.java
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lib/trino-parquet/src/main/java/io/trino/parquet/reader/flat/FlatColumnReader.java
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lib/trino-parquet/src/main/java/io/trino/parquet/reader/decoders/ValueDecoders.java
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lukasz-stec
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lgtm
sopel39
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lgtm % comments
lib/trino-parquet/src/main/java/io/trino/parquet/reader/ParquetReader.java
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Added accounting of memory usage to batched column readers. This takes into account the dictionary retained for decoding dictionary data pages and the extra memory usage of decompressed values from data pages.
sopel39
approved these changes
Jan 4, 2023
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Description
Added accounting of memory usage to batched column readers.
This takes into account the dictionary retained for decoding
dictionary data pages and the extra memory usage of decompressed
values from data pages.
Additional context and related issues
Fixes #10061
Release notes
( ) This is not user-visible or docs only and no release notes are required.
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(x) Release notes are required, with the following suggested text: