Added selection Tesxt(x,x)
x = y
Warning resolution and clean code
Compraisons <, >, >=, <=, <>
Merge equalities with compraisons
New examples
Merge branch 'sanpie'
read write script by Grisha:)
script example
Merge with Grigorys code
Merge with Grigorys code
Revert "Merge with Grigorys code"

This reverts commit e48b3fba9f77b1e95e369016578dbb00fdda3fa7.
code from grigory
Update documentation
Help/DB info commands
added help for WHERE and FROM
Unions :)
Start boolean predicates
Merge with jaume with master
Boolean predicates :)