Molt fetch fixes

[taroface]

DOC-12006
DOC-11690
DOC-11667

• Document --import-region flag.
• Fix type mapping JSON format.
• Mention MOLT Fetch as first option for loading data in migration tutorials. (This is a quick fix; the tutorial steps aren't updated to use Fetch yet. This will be tracked separately.)

[github-actions]

Files changed:

• src/current/molt/molt-fetch.md
• src/current/v23.2/migrate-from-mysql.md
• src/current/v23.2/migrate-from-postgres.md
• src/current/v24.1/migrate-from-mysql.md
• src/current/v24.1/migrate-from-postgres.md
• src/current/v24.2/migrate-from-mysql.md
• src/current/v24.2/migrate-from-postgres.md
• src/current/v24.3/migrate-from-mysql.md
• src/current/v24.3/migrate-from-postgres.md
• src/current/v25.1/migrate-from-mysql.md
• src/current/v25.1/migrate-from-postgres.md

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[taroface]

@ZhouXing19 Is --import-region actually required when using S3? If so, I'll add that to the flag description.

[ZhouXing19]

@ZhouXing19 Is --import-region actually required when using S3? If so, I'll add that to the flag description.

It is not required until the user needs to specify the AWS_REGION as part of the import bucket argument.

Say if the IMPORT stmt require a path:

s3://molt-fetch?AWS_ACCESS_KEY_ID=<AWS_ACCESS_KEY_ID>&AWS_SECRET_ACCESS_KEY=<AWS_SECRET_ACCESS_KEY>&AWS_SESSION_TOKEN=<AWS_SESSION_TOKEN>&AWS_REGION=ap-south-1'

They need to specify --import-region=ap-south-1 to have AWS_REGION=ap-south-1 append to the final import path used by molt

[taroface]

@ZhouXing19 Is --import-region actually required when using S3? If so, I'll add that to the flag description.

It is not required until the user needs to specify the AWS_REGION as part of the import bucket argument.

Say if the IMPORT stmt require a path:

s3://molt-fetch?AWS_ACCESS_KEY_ID=<AWS_ACCESS_KEY_ID>&AWS_SECRET_ACCESS_KEY=<AWS_SECRET_ACCESS_KEY>&AWS_SESSION_TOKEN=<AWS_SESSION_TOKEN>&AWS_REGION=ap-south-1'

They need to specify --import-region=ap-south-1 to have AWS_REGION=ap-south-1 append to the final import path used by molt

Thanks for this -- I attempted to clarify in the latest commit.

[florence-crl]

lgtm pending 1 suggestion