Struct PushedDownFilterInfo¶
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struct
PushedDownFilterInfo¶ The main purpose of this struct is to help identify the selected filters in Calcite just by looking at the query. input_prev, intput_start, and input_next represent the beginning column index for the previous, current and next tables in the query string respectively. TODO(Saman): should add some encoding based on the structure of the whole query to be able to uniquely identify fitlers in multi-step queries and/or subqueries.