Query below finds tables with specific name in all schemas in a database. In this case it searches for 'customer' table.
Query
select table_schema,
       table_name 
from information_schema.tables 
where table_name = 'customer' 
      and table_schema not in ('information_schema', 'pg_catalog')
      and table_type = 'BASE TABLE'
order by table_schema;
Columns
- schema_name - name of schema table was found in
- table_name - name of table (redundant as it should be exactly the same as provided)
Rows
- One row represents a table
- Scope of rows: all found tables
- Ordered by table schema
Notes
- There migh be more tables than one because different schemas in a database can have tables with the same names
Sample results

 
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                     
                                                                 
                                                             
                                                             
                                                             
                                                             
                                                                 
                                                             
                                                             
                                                                 
                                                             
                                                             
                                                             
                                                             Bart Gawrych
                                                                        Bart Gawrych
                                 PostgreSQL
                                                                PostgreSQL
                                 SQL Server
                                                                                                SQL Server
                                             Azure SQL Database
                                                                                                Azure SQL Database
                                             Oracle database
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                                             Snowflake
                                                                                                Snowflake
                                             Amazon Redshift
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                                             Vertica
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