Update Unique constraints in table definitions for SQL Server

Replace unique constraint with unique unique filtered index to allow null values to be ignored.
celtic-project · Mar 5, 2022 · 5ecd7f5 · 5ecd7f5
1 parent 65e4416
commit 5ecd7f5
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/sql/lti4-platform-mssql.sql b/sql/lti4-platform-mssql.sql
@@ -17,5 +17,5 @@ CREATE TABLE lti2_tool (
   created datetime2 NOT NULL,
   updated datetime2 NOT NULL,
   PRIMARY KEY (tool_pk),
-  CONSTRAINT UC_lti2_tool_initiate_login_url UNIQUE (initiate_login_url ASC)
+  INDEX UC_lti2_tool_initiate_login_url UNIQUE (initiate_login_url) WHERE (initiate_login_url IS NOT NULL)
 );
diff --git a/sql/lti4-tables-mssql.sql b/sql/lti4-tables-mssql.sql
@@ -23,8 +23,8 @@ CREATE TABLE lti2_consumer (
   created datetime2 NOT NULL,
   updated datetime2 NOT NULL,
   PRIMARY KEY (consumer_pk),
-  CONSTRAINT UC_lti2_consumer_consumer_key UNIQUE (consumer_key),
-  CONSTRAINT UC_lti2_consumer_platform UNIQUE (platform_id, client_id, deployment_id)
+  INDEX UC_lti2_consumer_consumer_key UNIQUE (consumer_key) WHERE (consumer_key IS NOT NULL),
+  INDEX UC_lti2_consumer_platform UNIQUE (platform_id, client_id, deployment_id) WHERE (platform_id IS NOT NULL) AND (client_id IS NOT NULL) AND (deployment_id IS NOT NULL)
 );
 
 CREATE TABLE lti2_nonce (