feat: sql dialect for different protocols (#1631)

* feat: add SqlDialect to query context

* feat: use session in postgrel handlers

* chore: refactor sql dialect

* feat: use different dialects for different sql protocols

* feat: adds GreptimeDbDialect

* refactor: replace GenericDialect with GreptimeDbDialect

* feat: save user info to session

* fix: compile error

* fix: test

Cargo.lock

@@ -8216,6 +8216,7 @@ dependencies = [
  "common-catalog",
  "common-telemetry",
  "common-time",
+ "sql",
 ]
 
 [[package]]
@@ -8487,7 +8488,6 @@ name = "sql"
 version = "0.2.0"
 dependencies = [
  "api",
- "catalog",
  "common-base",
  "common-catalog",
  "common-datasource",