Searches use the specialized syntax of PostgreSQL fulltext indexing and query system. Multiple MLRA symbols should be given as a comma-delimited list without spaces.

Searches are limited to the top 100 matches; open-ended queries could return many thousands of results.

Each search field (except for the "brief narrative" and MLRA) corresponds with a section header in an OSD. The results may not include every OSD due to formatting errors and typos.

Results are scored based on the number of times search terms match words in associated sections. Weights can be assigned in order to give precendence to specific sections.

Searches are limited to the top 100 matches; open-ended queries could return many thousands of results.

Notes:

• family level taxa are derived from SC database, not parsed OSD records
• MLRA are derived via spatial intersection (SSURGO x MLRA polygons)
• MLRA-filtering is only possible for series used in the current SSURGO snapshot (component name)
• logical AND: &
• logical OR: |
• wildcard, e.g. rhy-something rhy:*
• search terms with spaces need doubled single quotes: ''san joaquin''
• combine search terms into a single expression: (grano:* | granite)