Fix flaky tests in PostgresMlEmbeddingModelIT

Signed-off-by: leijendary <[email protected]>

Author: making

models/spring-ai-postgresml/src/main/java/org/springframework/ai/postgresml/PostgresMlEmbeddingModel.java

@@ -135,7 +135,7 @@ public float[] embed(String text) {
 		return this.jdbcTemplate.queryForObject(
 				"SELECT pgml.embed(?, ?, ?::JSONB)" + this.defaultOptions.getVectorType().cast + " AS embedding",
 				this.defaultOptions.getVectorType().rowMapper, this.defaultOptions.getTransformer(), text,
-				this.defaultOptions.getKwargs());
+				ModelOptionsUtils.toJsonString(this.defaultOptions.getKwargs()));
 	}
 
 	@Override
@@ -203,7 +203,6 @@ PostgresMlEmbeddingOptions mergeOptions(EmbeddingOptions requestOptions) {
 	@Override
 	public void afterPropertiesSet() {
 		this.jdbcTemplate.execute("CREATE EXTENSION IF NOT EXISTS pgml");
-		this.jdbcTemplate.execute("CREATE EXTENSION IF NOT EXISTS hstore");
 		if (StringUtils.hasText(this.defaultOptions.getVectorType().extensionName)) {
 			this.jdbcTemplate
 				.execute("CREATE EXTENSION IF NOT EXISTS " + this.defaultOptions.getVectorType().extensionName);

models/spring-ai-postgresml/src/test/java/org/springframework/ai/postgresml/PostgresMlEmbeddingModelIT.java

@@ -55,7 +55,7 @@
 @JdbcTest(properties = "logging.level.sql=TRACE")
 @AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
 @Testcontainers
-@Disabled("Disabled from automatic execution, as it requires an excessive amount of memory (over 9GB)!")
+@Disabled("Disabled from automatic execution, as it pulls a very large image file (over 9GB)!")
 class PostgresMlEmbeddingModelIT {
 
 	@Container