[FLINK-26125] Doc overhaul for the CAST behaviour

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.15.0
• Component/s: Documentation, Table SQL / API
• Labels: pull-request-available
• Assignee: Francesco Guardiani
• Reporter: Francesco Guardiani
• Created: 14/Feb/22 09:53
• Updated: 10/Mar/22 15:45
• Resolved: 10/Mar/22 14:45

Description

This includes:

• Proper documentation of the new TRY_CAST
• Add a CAST matrix to document which CAST tuples are supported

Issue Links

• is blocked by: FLINK-24385 Add TRY_CAST function to be able to handle errors
• is related to: FLINK-26588 Translate the new SQL CAST documentation to Chinese
• links to: GitHub Pull Request #18813