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Showing content from https://github.com/pandas-dev/pandas/issues/2908 below:

specify chunksize for read_sql · Issue #2908 · pandas-dev/pandas · GitHub

It would be helpful to iterate through rows returned from an sql query (sqlite specifically) chunk by chunk just as is done in the read_csv and text files function as described here: http://pandas.pydata.org/pandas-docs/stable/io.html#iterating-through-files-chunk-by-chunk

The return value should be an iterable object. This will prevent queries from returning too large an amount of data, (possibly) exceeding the system memory.


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