vérifier qu'une table existe avec JDBC et PosgreSQL

Bonjour à tous !
Je souhaite vérifier qu'une table existe dans une base PostgreSQL via JDBC. Quand je fais

Code:

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try {
            s = conn.createStatement();
            ResultSet rs = s.executeQuery("SHOW TABLES LIKE 'table1';");
            if (!rs.next()) {
                System.err.println("La table 'table1' n'existe pas.");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }

J'ai

Code:

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org.postgresql.util.PSQLException: ERREUR: erreur de syntaxe sur ou près de « LIKE »
  Position*: 13

Pourtant, PostgreSQL connait l'opérateur like... non ? L'erreur viendrait d'où ?

Merci pour l'aide :)

Il ne faut pas faire comme ça pour tester l'existence d'une table mais passer par DatatableMetaData.
Code:

1 2 3 4 5 6 7 ... DatabaseMetaData dbmd = conneciton.getMetaData(); ResultSet rs = dbmd.getTables(catalogue, schema, tablePattern, tableTypes); if (rs.next()) { ... on a trouvé }
Ci-dessous les explications des paramètres

Citation:

ResultSet getTables(String catalog,
String schemaPattern,
String tableNamePattern,
String[] types)
throws SQLException Retrieves a description of the tables available in the given catalog. Only table descriptions matching the catalog, schema, table name and type criteria are returned. They are ordered by TABLE_TYPE, TABLE_CAT, TABLE_SCHEM and TABLE_NAME. Each table description has the following columns:

TABLE_CAT String => table catalog (may be null)
TABLE_SCHEM String => table schema (may be null)
TABLE_NAME String => table name
TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
REMARKS String => explanatory comment on the table
TYPE_CAT String => the types catalog (may be null)
TYPE_SCHEM String => the types schema (may be null)
TYPE_NAME String => type name (may be null)
SELF_REFERENCING_COL_NAME String => name of the designated "identifier" column of a typed table (may be null)
REF_GENERATION String => specifies how values in SELF_REFERENCING_COL_NAME are created. Values are "SYSTEM", "USER", "DERIVED". (may be null)

Note: Some databases may not return information for all tables.

Parameters:catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means that the catalog name should not be used to narrow the searchschemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema; null means that the schema name should not be used to narrow the searchtableNamePattern - a table name pattern; must match the table name as it is stored in the databasetypes - a list of table types, which must be from the list of table types returned from getTableTypes(),to include; null returns all typesReturns:ResultSet - each row is a table descriptionThrows:SQLException - if a database access error occurs

Merci bien, problème résolu :D