Use inspect-file, if possible, for total row count #666
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This is a smart optimization. I'd like to add a test for it, since the logic is a tiny bit more complex. |
For large tables, counting the number of rows in the table can take a signficant amount of time. Instead, where an inspect-file is provided for an immutable database, look up the row-count for a plain count(*).
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It was very helpful for me, using it for a 15M row table. Added a test, happy to amend though! |
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This is great, thanks! |
simonw
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Mar 26, 2020
For large tables, counting the number of rows in the table can take a significant amount of time. Instead, where an inspect-file is provided for an immutable database, look up the row-count for a plain count(*). Thanks, @kevindkeogh
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For large tables, counting the number of rows in the table can take a
signficant amount of time. Instead, where an inspect-file is provided
for an immutable database, look up the row-count for a plain count(*).