def getkeys(table):
    """
    customize by commenting out unwanted keys
    """
    keys = []
    if table == "ER_expedition":
        pass
    if table == "ER_citations":
        keys.append("er_citation_name")
        keys.append("long_authors")
        keys.append("year")
        keys.append("title")
        keys.append("citation_type")
        keys.append("doi")
        keys.append("journal")
        keys.append("volume")
        keys.append("pages")
        keys.append("book_title")
        keys.append("book_editors")
        keys.append("publisher")
        keys.append("city")
    if table == "ER_locations":
        keys.append("er_location_name")
        keys.append("er_scientist_mail_names")
#        keys.append("er_location_alternatives" )
        keys.append("location_type")
        keys.append("location_begin_lat")
        keys.append("location_begin_lon")
#        keys.append("location_begin_elevation" )
        keys.append("location_end_lat")
        keys.append("location_end_lon")
#        keys.append("location_end_elevation" )
        keys.append("continent_ocean")
        keys.append("country")
        keys.append("region")
        keys.append("plate_block")
        keys.append("terrane")
        keys.append("tectonic_setting")
#        keys.append("er_citation_names")
    if table == "ER_Formations":
        keys.append("er_formation_name")
        keys.append("formation_class")
        keys.append("formation_lithology")
        keys.append("formation_paleo_environment")
        keys.append("formation_thickness")
        keys.append("formation_description")
    if table == "ER_sections":
        keys.append("er_section_name")
        keys.append("er_section_alternatives")
        keys.append("er_expedition_name")
        keys.append("er_location_name")
        keys.append("er_formation_name")
        keys.append("er_member_name")
        keys.append("section_definition")
        keys.append("section_class")
        keys.append("section_lithology")
        keys.append("section_type")
        keys.append("section_n")
        keys.append("section_begin_lat")
        keys.append("section_begin_lon")
        keys.append("section_begin_elevation")
        keys.append("section_begin_height")
        keys.append("section_begin_drill_depth")
        keys.append("section_begin_composite_depth")
        keys.append("section_end_lat")
        keys.append("section_end_lon")
        keys.append("section_end_elevation")
        keys.append("section_end_height")
        keys.append("section_end_drill_depth")
        keys.append("section_end_composite_depth")
        keys.append("section_azimuth")
        keys.append("section_dip")
        keys.append("section_description")
        keys.append("er_scientist_mail_names")
        keys.append("er_citation_names")
    if table == "ER_sites":
        keys.append("er_location_name")
        keys.append("er_site_name")
#        keys.append("er_site_alternatives")
#        keys.append("er_formation_name")
#        keys.append("er_member_name")
#        keys.append("er_section_name")
        keys.append("er_scientist_mail_names")
        keys.append("site_class")
#        keys.append("site_type")
#        keys.append("site_lithology")
#        keys.append("site_height")
#        keys.append("site_drill_depth")
#        keys.append("site_composite_depth")
#        keys.append("site_lithology")
#        keys.append("site_description")
        keys.append("site_lat")
        keys.append("site_lon")
#        keys.append("site_location_precision")
#        keys.append("site_elevation")
    if table == "ER_samples":
        keys.append("er_location_name")
        keys.append("er_site_name")
#       keys.append("er_sample_alternatives")
        keys.append("sample_azimuth")
        keys.append("sample_dip")
        keys.append("sample_bed_dip")
        keys.append("sample_bed_dip_direction")
#       keys.append("sample_cooling_rate")
#       keys.append("sample_type")
#       keys.append("sample_lat")
#       keys.append("sample_lon")
        keys.append("magic_method_codes")
    if table == "ER_ages":
        #       keys.append("er_location_name")
        #       keys.append("er_site_name")
        #       keys.append("er_section_name")
        #       keys.append("er_formation_name")
        #       keys.append("er_member_name")
        #       keys.append("er_site_name")
        #       keys.append("er_sample_name")
        #       keys.append("er_specimen_name")
        #       keys.append("er_fossil_name")
        #       keys.append("er_mineral_name")
        #       keys.append("tiepoint_name")
        keys.append("age")
        keys.append("age_sigma")
        keys.append("age_unit")
        keys.append("age_range_low")
        keys.append("age_range_hi")
        keys.append("timescale_eon")
        keys.append("timescale_era")
        keys.append("timescale_period")
        keys.append("timescale_epoch")
        keys.append("timescale_stage")
        keys.append("biostrat_zone")
        keys.append("conodont_zone")
        keys.append("magnetic_reversal_chron")
        keys.append("astronomical_stage")
#       keys.append("age_description")
#       keys.append("magic_method_codes")
#       keys.append("er_timescale_citation_names")
#       keys.append("er_citation_names")
    if table == "MAGIC_measurements":
        keys.append("er_location_name")
        keys.append("er_site_name")
        keys.append("er_sample_name")
        keys.append("er_specimen_name")
        keys.append("measurement_positions")
        keys.append("treatment_temp")
        keys.append("treatment_ac_field")
        keys.append("treatment_dc_field")
        keys.append("treatment_dc_field_phi")
        keys.append("treatment_dc_field_theta")
        keys.append("magic_experiment_name")
        keys.append("magic_instrument_codes")
        keys.append("measurement_temp")
        keys.append("magic_method_codes")
        keys.append("measurement_inc")
        keys.append("measurement_dec")
        keys.append("measurement_magn_moment")
        keys.append("measurement_csd")
    return keys
customize by commenting out unwanted keys