+
+ 2022-07-02
+
+- I learned how to use the Levenshtein functions in PostgreSQL
+
+- The thing is that there is a limit of 255 characters for these functions in PostgreSQL so you need to truncate the strings before comparing
+- Also, the trgm functions I’ve used before are case insensitive, but Levenshtein is not, so you need to make sure to lower case both strings first
+
+
+
+
+- A working query checking for duplicates in the recent AfricaRice items is:
+
+localhost/dspace= ☘ SELECT text_value FROM metadatavalue WHERE dspace_object_id IN (SELECT uuid FROM item) AND metadata_field_id=64 AND levenshtein_less_equal(LOWER('International Trade and Exotic Pests: The Risks for Biodiversity and African Economies'), LEFT(LOWER(text_value), 255), 3) <= 3;
+ text_value
+────────────────────────────────────────────────────────────────────────────────────────
+ International trade and exotic pests: the risks for biodiversity and African economies
+(1 row)
+
+Time: 399.751 ms
+
2022-07-03
+
+- Start a harvest on AReS
+
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