Index with expression

added dynamic_set

fixed compilation

fixed update_all with dynamic_set compilation

Daisy chaining the concatenation operator

Runner-up: Daisy chaining the concatenation operator

`EXISTS` must use parentheses

Dev to core

Core to dev

Fix warning of std::move

Detect the absence of string_view's iterator range ctor differently.

…024000

Properly guard everywhere the availability of the 'upsert clause' feature

Use a single implementation of `stream_sql_escaped()`

Tests for constrained join clauses with regard to table collection

Operators should be in internal namespace

…e_iterate

Simplify reverse tuple iteration