#2109 By default, use only 1000 rows to infer the schema #2139
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… during `cargo test`
# Conflicts: # datafusion/core/src/datasource/file_format/csv.rs # datafusion/core/src/datasource/file_format/json.rs # datafusion/core/tests/sql/mod.rs
Dandandan
approved these changes
Apr 3, 2022
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Thanks @jychen7 ! |
alamb
changed the title
Merged
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Which issue does this PR close?
Closes #2109
Rationale for this change
Almost 100x slowdown on 0.7.0 with CSV file due to parsing entire file to infer schema
What changes are included in this PR?
set default to 1000 instead of None (unlimit) for csv and json's schema_infer_max_rec
Are there any user-facing changes?
NA