Use BufWriter when writing bloom filters and limit tests (#3318)#3319
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Disable bloom filters for most tests
tustvold
commented
Dec 9, 2022
| max_statistics_size: Option<usize>, | ||
| /// bloom filter related properties | ||
| bloom_filter_properies: Option<BloomFilterProperties>, | ||
| bloom_filter_properties: Option<BloomFilterProperties>, |
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This is a drive by fix of a typo
tustvold
commented
Dec 9, 2022
| /// Write the bloom filter data (header and then bitset) to the output | ||
| pub(crate) fn write<W: Write>(&self, mut writer: W) -> Result<(), ParquetError> { | ||
| pub(crate) fn write<W: Write>(&self, writer: W) -> Result<(), ParquetError> { | ||
| // Use a BufWriter to avoid costs of writing individual blocks |
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I wonder if we should be using BufWriter at a higher level 🤔 I guess we mostly don't run into this issue as we write large page sized blobs
viirya
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Dec 9, 2022
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Thank you for the quick turnaround |
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Which issue does this PR close?
Closes #3318
Rationale for this change
The tests were taking an exceedingly long time to run, this disables them except for a few select tests that explicitly test the bloom filter.
This also adds a BufWriter when writing bloom filters, it is almost certain that this can be optimised further, but this was a quick win that took
i32_column_bloom_filterfrom taking 17 seconds to 2. This is still terrible, but not catastrophic 😅What changes are included in this PR?
Are there any user-facing changes?