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33dce2b7fc
In 6165124fcc, we changed analysis of expressions in the WHERE clause
to use predicates, an annotated form of an expression that constrains a column
when the expression is set to true.
Here, we exploit this work to simplify the analysis further, reusing already computed
attributes rather than re-analyzing the expression.
Not backporting, this is a refactor with no functional change and no bugs fixed.
Closes scylladb/scylladb#30049
* github.com:scylladb/scylladb:
cql3: statement_restrictions: simplify find_idx to return only the index
cql3: statement_restrictions: replace has_only_eq_binops with tracked booleans
cql3: statement_restrictions: use index-selection predicates for value_for_index_partition_key
cql3: statement_restrictions: replace find_clustering_order with predicate order field
cql3: statement_restrictions: replace has_partition_token with variant check
cql3: statement_restrictions: replace has_slice with predicate is_slice check
cql3: statement_restrictions: replace contains_multi_column_restriction filter with _has_multi_column
cql3: statement_restrictions: remove unused find_needs_filtering and has_slice_or_needs_filtering
cql3: statement_restrictions: replace has_slice_or_needs_filtering with tracked bool
cql3: statement_restrictions: replace contains_multi_column_restriction with _has_multi_column
cql3: statement_restrictions: replace find_needs_filtering with predicate op check
cql3: statement_restrictions: replace find_binop is_on_collection with tracked bool
cql3: statement_restrictions: replace find_binop column extraction with predicate on field
cql3: statement_restrictions: set op on all binary-operator-derived predicates