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edwardt mehenry piccolbo guanlongtianzi ianskinner orenov eunicejk barogers3 perezrathke kashenfelter jharnerravro's Issues
failing on complicated schemas
Hello,
I tested read.avro using a moderately complicated schema. Some fields contain sub-records, other fields contain arrays of records. One of the sub-records (named moments and containing mean, variance, skewness, and kurtosis fields) is defined the first time and referenced as a type subsequently. This does not cause avro any problems, but read.avro throws the following error:
> dat <- read.avro(file="/path/to/file/part-r-00000.avro")
Error in (function (x, schema, flatten = T, simplify = F, encoded_unions = T, :
Unsupported Avro type: moments
The schema being read here reads (in part):
...
"fields" : [ {
"name" : "routename",
"type" : "string",
"doc" : "path identifier indicates unique fix sequence"
}, {
"name" : "aircrafttype",
"type" : "string"
}, {
"name" : "lowaltitudebin",
"type" : "double",
"doc" : "altitude [feet] at low end of route (rounded to nearest 1000ft)"
}, {
"name" : "highaltitudebin",
"type" : "double",
"doc" : "altitude [feet] at high end of route (rounded to nearest 1000ft)"
}, {
"name" : "route",
"type" : [ "null", {
"type" : "record",
"name" : "routemetrics",
"fields" : [ {
"name" : "route",
"type" : [ "string", "null" ]
}, {
"name" : "initialalttude",
"type" : [ "null", {
"type" : "record",
"name" : "moments",
"fields" : [ {
"name" : "mean",
"type" : "double"
}, {
"name" : "variance",
"type" : "double"
}, {
"name" : "skewness",
"type" : "double"
}, {
"name" : "kurtosis",
"type" : "double"
}, {
"name" : "samplesize",
"type" : "long"
} ]
} ],
"doc" : "moments [feet] characterizing distribution of atltitudes at the beginning of the route (within given binning constraint)"
}, {
"name" : "terminalaltitude",
"type" : [ "null", "moments" ],
"doc" : "moments [feet] characterizing distribution of atltitudes at the end of the route (within given binning constraint)"
}, {...
Note that moments is defined as a type (as part of a union) for the first time in the initialalttude field, which is a field of the routemetrics record nested inside of the top-level route field. After that, moments is referenced by name in the subsequent terminalaltitude field.
Are there any plans to deal well with schemas like the one above?
Please provide a working example to read and write avro files from hdfs.
Error in ravro:::avro_get_schema
Error retrieving schema. Verify that the file exists.
Ravro version : 1.0.4
ravro::AVRO_TOOLS : avro-tools-1.7.4.jar
I followed the long thread covering this issue but could not figure out if it was fixed or not.
ravro unable to read acro file for my schema
Hello,
I successfully read an avro file from this exemple : https://github.com/miguno/avro-cli-examples/blob/master/twitter.avro but when I try with my schema, a more complex one, ravro gives the following error :
Error in mapply(parse_avro, x_df, schema$fields, MoreArgs = list(flatten = flatten, :
zero-length inputs cannot be mixed with those of non-zero length
Here is the schema that I use to create my avro file
{
"namespace":"com.kiabi.avro.web.orders",
"type":"record",
"doc":"This Schema describes about web orders ",
"name":"Commande",
"fields": [
{"name": "metadata",
"type": {
"name": "Metadata", "type": "record",
"fields": [
{"name": "date_evenement", "type" : "long", "description": "date d'integration dans la zone de staging - timestamp UNIX"},
{"name": "type_evenement", "type" : "string", "description": "Creation, Modication, Suppression"},
{"name": "date_integration", "type" : ["null","long"], "description": "date d'integration dans la zone de data - timestamp UNIX"}
]
}
},
{"name": "entete_commande",
"type": {
"name": "EnteteCommande", "type": "record",
"fields": [
{"name": "code_site_web", "type" : "string"},
{"name": "code_cde_web", "type" : "string"},
{"name": "no_cli", "type" : "long"},
{"name": "no_adresse_cli", "type" : ["null","long"]},
{"name": "no_adresse_fact", "type" : ["null","long"]},
{"name": "code_etat_cde", "type" : ["null","string"]},
{"name": "date_etat_cde", "type" : ["null","long"]},
{"name": "code_langue", "type" : ["null","string"]},
{"name": "flag_remise_fid", "type" : ["null","string"]},
{"name": "flag_dem_carte_fid", "type" : ["null","string"]},
{"name": "flag_ach_mag", "type" : ["null","string"]},
{"name": "code_orig_connexion", "type" : ["null","long"]},
{"name": "no_carte_fid", "type" : ["null","string"]},
{"name": "lib_msg_cadeau", "type" : ["null","string"]},
{"name": "code_dev", "type" : ["null","string"]},
{"name": "code_mode_pay", "type" : ["null","string"]},
{"name": "flag_pay_val", "type" : ["null","string"]},
{"name": "flag_pay_ann", "type" : ["null","string"]},
{"name": "date_pay_ann", "type" : ["null","long"]},
{"name": "no_colis_total", "type" : ["null","long"]},
{"name": "code_orig_affectation_ca", "type" : ["null","string"]},
{"name": "code_etab_affectation_ca", "type" : ["null","string"]},
{"name": "code_postal_affectation_ca", "type" : ["null","string"]},
{"name": "code_pays_affectation_ca", "type" : ["null","string"]},
{"name": "flag_affectation_ca", "type" : ["null","string"]},
{"name": "histo_etat_commande",
"doc": "on a 1 a N historique de l'etat de la commande",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "HistoEtatCommande",
"fields":[
{"name": "id_histo_etat_cde", "type" : "long"},
{"name": "no_expe", "type" : ["null","string"]},
{"name": "no_reliquat", "type" : ["null","string"]},
{"name": "code_etat_cde", "type" : "string"},
{"name": "date_etat_cde", "type" : "long"}
]
}
}
},
{"name": "details_commande",
"doc": "on a 1 a N detail par commande",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "DetailsCommande",
"fields":[
{"name": "no_ligne", "type" : "long"},
{"name": "no_expe", "type" : "string"},
{"name": "no_reliquat", "type" : "string"},
{"name": "code_produit", "type" : "string"},
{"name": "code_type_produit", "type" : "string"},
{"name": "code_orig_cat", "type" : "string"},
{"name": "code_produit_reel", "type" : ["null","string"]},
{"name": "code_colis", "type" : ["null","string"]},
{"name": "code_etat_lig_cde", "type" : ["null","string"]},
{"name": "date_etat_lig_cde", "type" : ["null","long"]},
{"name": "code_etab_log", "type" : ["null","string"]},
{"name": "qte_cde", "type" : ["null","long"]},
{"name": "qte_ano_stock", "type" : ["null","long"]},
{"name": "qte_dem_prel", "type" : ["null","long"]},
{"name": "qte_prel", "type" : ["null","long"]},
{"name": "qte_expe_cli", "type" : ["null","long"]},
{"name": "no_cde_cli", "type" : ["null","long"]},
{"name": "flag_picking", "type" : ["null","string"]},
{"name": "flag_envoi_site", "type" : ["null","string"]},
{"name": "pud_pvttc_caisse", "type" : ["null","long"]},
{"name": "valod_pud_pvttc_caisse", "type" : ["null","long"]},
{"name": "code_operation", "type" : ["null","string"]},
{"name": "taux_tva", "type" : ["null","double"]},
{"name": "pud_remb", "type" : ["null","long"]},
{"name": "valod_pud_remb", "type" : ["null","long"]},
{"name": "code_pays_fab", "type" : ["null","string"]},
{"name": "pud_remb_orig", "type" : ["null","long"]},
{"name": "valod_pud_remb_orig", "type" : ["null","long"]},
{"name": "pud_pvttc_caisse_orig", "type" : ["null","long"]},
{"name": "valod_pud_pvttc_caisse_orig", "type" : ["null","long"]},
{"name": "taux_tva_orig", "type" : ["null","double"]},
{"name": "no_distro", "type" : ["null","string"]},
{"name": "no_prio_expe", "type" : ["null","long"]},
{"name": "qte_rec", "type" : ["null","long"]},
{"name": "qte_ano_rec", "type" : ["null","long"]},
{"name": "qte_ano_tri", "type" : ["null","long"]},
{"name": "pud_pvttc_affichage_web", "type" : ["null","long"]},
{"name": "valod_pud_pvttc_affichage_web", "type" : ["null","long"]},
{"name": "pud_pvttc_affichage_web_orig", "type" : ["null","long"]},
{"name": "valod_pud_pvttc_affichage_web_orig", "type" : ["null","long"]},
{"name": "qte_distro_expe", "type" : ["null","long"]},
{"name": "type_tri", "type" : ["null","string"]},
{"name": "code_etab_tri", "type" : ["null","string"]},
{"name": "histo_details_commande",
"doc": "on a 1 a N histo par detail",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "HistoDetailsCommande",
"fields":[
{"name": "code_etat_lig_cde", "type" : "string"},
{"name": "date_etat_lig_cde", "type" : "long"},
{"name": "id_cmt", "type" : ["null","long"]}
]
}
}
}
]
}
}
},
{"name": "financement_commande",
"doc": "on a 1 a N financement par commande",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "FinancementCommande",
"fields":[
{"name": "no_expe", "type" : "string"},
{"name": "type_financ", "type" : "string"},
{"name": "mode_financ", "type" : "string"},
{"name": "code_dev_financ", "type" : "string"},
{"name": "no_ret", "type" : "long"},
{"name": "mnt_financ", "type" : ["null","long"]},
{"name": "valod_mnt_financ", "type" : ["null","long"]},
{"name": "flag_envoi_site", "type" : ["null","string"]},
{"name": "date_envoi_site", "type" : ["null","long"]},
{"name": "flag_envoi_livcai", "type" : ["null","string"]},
{"name": "date_envoi_livcai", "type" : ["null","long"]},
{"name": "flag_val_site", "type" : ["null","string"]},
{"name": "date_val", "type" : ["null","long"]},
{"name": "mnt_pay_liv", "type" : ["null","long"]},
{"name": "valod_mnt_pay_liv", "type" : ["null","long"]},
{"name": "flag_financ_partiel", "type" : ["null","string"]},
{"name": "flag_transaction_recu", "type" : ["null","string"]},
{"name": "id_transaction", "type" : ["null","long"]},
{"name": "flag_histo_livcai", "type" : ["null","string"]}
]
}
}
},
{"name": "bon_commande",
"doc": "on a 1 a N bon utilise par commande",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "BonCommande",
"fields":[
{"name": "no_bon", "type" : "string"},
{"name": "code_cli_site_web", "type" : ["null","string"]},
{"name": "mnt_financ_bon", "type" : "long"},
{"name": "valod_mnt_financ_bon", "type" : ["null","long"]},
{"name": "code_dev_bon", "type" : "string"},
{"name": "date_blocage_bon", "type" : ["null","long"]},
{"name": "motif_blocage_bon", "type" : ["null","string"]}
]
}
}
},
{"name": "bon_emis_commande",
"doc": "on a 1 a N bon emis par commande (suite retour)",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "BonEmisCommande",
"fields":[
{"name": "no_bon", "type" : "string"},
{"name": "no_expe", "type" : "string"},
{"name": "no_ret", "type" : "long"},
{"name": "val_bon", "type" : "long"},
{"name": "valod_val_bon", "type" : ["null","long"]},
{"name": "date_appli", "type" : "long"},
{"name": "code_dev_bon", "type" : "string"},
{"name": "code_cli_site_web", "type" : ["null","string"]}
]
}
}
},
{"name": "expe_commande",
"doc": "on a 1 a N expedition par commande",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "ExpeCommande",
"fields":[
{"name": "no_expe", "type" : "string"},
{"name": "no_reliquat", "type" : "string"},
{"name": "code_etat_expe", "type" : "string"},
{"name": "date_etat_expe", "type" : "long"},
{"name": "no_cli", "type" : "long"},
{"name": "no_adresse_liv", "type" : ["null","long"]},
{"name": "code_type_liv", "type" : "string"},
{"name": "flag_mono_cv", "type" : "string"},
{"name": "flag_mono_entrepot", "type" : "string"},
{"name": "no_pack", "type" : ["null","string"]},
{"name": "code_relais", "type" : ["null","string"]},
{"name": "code_pays", "type" : ["null","string"]},
{"name": "code_transport", "type" : ["null","string"]},
{"name": "mnt_frais_port", "type" : ["null","long"]},
{"name": "valod_mnt_frais_port", "type" : ["null","long"]},
{"name": "flag_envoi_ca", "type" : ["null","string"]},
{"name": "flag_prel_cde", "type" : ["null","string"]},
{"name": "flag_export", "type" : ["null","string"]},
{"name": "code_transport_reel", "type" : ["null","string"]},
{"name": "code_type_liv_reel", "type" : ["null","string"]}
]
}
}
},
{"name": "retour_commande",
"doc": "on a 1 a N retour par commande",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "RetourCommande",
"fields":[
{"name": "no_expe", "type" : "string"},
{"name": "no_reliquat", "type" : "string"},
{"name": "no_ret", "type" : "long"},
{"name": "date_saisie_ret", "type" : ["null","long"]},
{"name": "flag_remb_bloque", "type" : ["null","string"]},
{"name": "date_remb_deblocage", "type" : ["null","long"]},
{"name": "code_transport_ret", "type" : ["null","string"]},
{"name": "code_user_creation", "type" : ["null","string"]},
{"name": "date_user_maj", "type" : ["null","long"]},
{"name": "code_user_maj", "type" : ["null","string"]},
{"name": "flag_envoi_ca", "type" : ["null","string"]},
{"name": "date_envoi_ca", "type" : ["null","long"]},
{"name": "cmt_ret", "type" : ["null","string"]},
{"name": "flag_histo_ca", "type" : ["null","string"]},
{"name": "details_retour_commande",
"doc": "on a 1 a N detail pour chaque retour de commande",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "DetailsRetourCommande",
"fields":[
{"name": "no_expe", "type" : "string"},
{"name": "no_reliquat", "type" : "string"},
{"name": "no_ligne", "type" : "long"},
{"name": "code_produit_reel", "type" : ["null","string"]},
{"name": "qte_ret", "type" : ["null","long"]},
{"name": "code_motif_ret", "type" : ["null","string"]},
{"name": "code_etab_emet", "type" : ["null","string"]},
{"name": "code_etab_dest", "type" : ["null","string"]},
{"name": "mnt_remb", "type" : ["null","long"]},
{"name": "valod_mnt_remb", "type" : ["null","long"]},
{"name": "code_motif_remb", "type" : ["null","string"]},
{"name": "code_mode_pay_remb", "type" : ["null","string"]},
{"name": "date_remb_dem", "type" : ["null","long"]},
{"name": "flag_remb_val", "type" : ["null","string"]},
{"name": "date_remb_val", "type" : ["null","long"]},
{"name": "flag_ces", "type" : ["null","string"]},
{"name": "flag_ces_val", "type" : ["null","string"]},
{"name": "date_extr_ces", "type" : ["null","long"]},
{"name": "no_colis_ces", "type" : ["null","long"]}
]
}
}
}
]
}
}
},
{"name": "colis",
"doc": "on a 1 a N colis par commande",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "ColisCommande",
"fields":[
{"name": "no_expe", "type" : "string"},
{"name": "no_reliquat", "type" : "string"},
{"name": "code_colis", "type" : "string"},
{"name": "code_etat_colis", "type" : "string"},
{"name": "date_etat_colis", "type" : ["null","long"]},
{"name": "poids_colis", "type" : ["null","double"]},
{"name": "code_transport", "type" : "string"},
{"name": "code_colis_prec", "type" : ["null","string"]},
{"name": "code_colis_suiv", "type" : ["null","string"]},
{"name": "no_bord", "type" : ["null","string"]},
{"name": "code_barre_colis", "type" : ["null","string"]},
{"name": "date_envoi_edi", "type" : ["null","long"]},
{"name": "no_ref_transaction_pay", "type" : ["null","string"]},
{"name": "type_ret", "type" : ["null","string"]},
{"name": "date_ret", "type" : ["null","long"]},
{"name": "no_colis", "type" : ["null","long"]},
{"name": "no_fact", "type" : ["null","string"]},
{"name": "code_type_liv_reel", "type" : ["null","string"]},
{"name": "mnt_pay_liv", "type" : ["null","long"]},
{"name": "valod_mnt_pay_liv", "type" : ["null","long"]},
{"name": "date_retrait_max", "type" : ["null","long"]},
{"name": "nom_cli_retrait", "type" : ["null","string"]},
{"name": "code_relais_reel", "type" : ["null","string"]},
{"name": "code_colis_secondaire", "type" : ["null","string"]},
{"name": "type_emballage", "type" : ["null","string"]},
{"name": "financement_colis",
"doc": "on a 1 a N financement par colis",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "FinancementColis",
"fields":[
{"name": "type_financ", "type" : "string"},
{"name": "mode_financ", "type" : "string"},
{"name": "code_dev_financ", "type" : ["null","string"]},
{"name": "mnt_financ", "type" : ["null","double"]},
{"name": "valod_mnt_financ", "type" : ["null","double"]},
{"name": "trt_creation_enr", "type" : ["null","string"]},
{"name": "date_creation_enr", "type" : ["null","long"]},
{"name": "trt_maj_enr", "type" : ["null","string"]},
{"name": "date_maj_enr", "type" : ["null","long"]},
{"name": "flag_envoi_ca", "type" : ["null","string"]},
{"name": "date_envoi_ca", "type" : ["null","long"]},
{"name": "flag_transaction_recu", "type" : ["null","string"]},
{"name": "id_transaction", "type" : ["null","long"]},
{"name": "flag_histo_ca", "type" : ["null","string"]}
]
}
}
},
{"name": "histo_etat_colis",
"doc": "on a 1 a N histo par colis",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "HistoEtatColis",
"fields":[
{"name": "code_etat_colis", "type" : "string"},
{"name": "date_etat_colis", "type" : ["null","long"]},
{"name": "code_transport", "type" : "string"}
]
}
}
}
]
}
}
}
]
}
}
]
}
``
write.avro fails on data frame
Error is
ravro:::write.avro(df, tf1)
Exception in thread "main" org.apache.avro.SchemaParseException: Enum has no symbols: {"name":"col_2","type":"enum","symbols":"d"}
at org.apache.avro.Schema.parse(Schema.java:1121)
at org.apache.avro.Schema.parse(Schema.java:1094)
at org.apache.avro.Schema$Parser.parse(Schema.java:927)
at org.apache.avro.Schema$Parser.parse(Schema.java:917)
at org.apache.avro.Schema.parse(Schema.java:966)
at org.apache.avro.tool.DataFileWriteTool.run(DataFileWriteTool.java:91)
at org.apache.avro.tool.Main.run(Main.java:80)
at org.apache.avro.tool.Main.main(Main.java:69)
dump of df
df <-
structure(list(col_1 = 139.084976531123, col_2 = structure(1L, .Label = "d", class = "factor"),
col_3 = TRUE, col_4 = FALSE, col_5 = -11.3948273417181, col_6 = 90.2836501356233,
col_7 = structure(1L, .Label = "", class = "factor"), col_8 = structure(1L, .Label = "57be", class = "factor")), .Names = c("col_1",
"col_2", "col_3", "col_4", "col_5", "col_6", "col_7", "col_8"
), row.names = c(NA, -1L), class = "data.frame")
Another instance
Exception in thread "main" org.apache.avro.SchemaParseException: Enum has no symbols: {"name":"col_1","type":"enum","symbols":"_6f7a4bc347_ravro"}
at org.apache.avro.Schema.parse(Schema.java:1121)
at org.apache.avro.Schema.parse(Schema.java:1094)
at org.apache.avro.Schema$Parser.parse(Schema.java:927)
at org.apache.avro.Schema$Parser.parse(Schema.java:917)
at org.apache.avro.Schema.parse(Schema.java:966)
at org.apache.avro.tool.DataFileWriteTool.run(DataFileWriteTool.java:91)
at org.apache.avro.tool.Main.run(Main.java:80)
at org.apache.avro.tool.Main.main(Main.java:69)
Dump
df <-
structure(list(col_1 = structure(1L, .Label = "6f7a4bc347", class = "factor"),
col_2 = structure(1L, .Label = "46f315f9", class = "factor"),
col_3 = -158.916518470489, col_4 = -72.4716823839384, col_5 = 34L,
col_6 = structure(1L, .Label = "6f7a", class = "factor"),
col_7 = -10L, col_8 = 10L), .Names = c("col_1", "col_2",
"col_3", "col_4", "col_5", "col_6", "col_7", "col_8"), row.names = c(NA,
-1L), class = "data.frame")
My theory from several example is failure occurs iff input is a data frame with a single row and at least one factor column
union of primitive and complex types
Greetings,
First - kind thanks for replying to the previous null issue.
In an attempt to avoid this null usage, we've rewritten the schema/data to leverage unions of primitive (string/int/etc) and complex (array/record) types. However, we're running into the following error:
Error in sch$type : $ operator is invalid for atomic vectors
This appears to happen during the sapply routine on the parsing of the union type. Below, JSON/schema pairs have been provided for an (1) int/array case and an (2) int/record case. Any insight or help would be wonderful.
Thanks in advance,
Sean
INT/ARRAY case
JSON:
{
"dataset": 3,
"app": {"array": ["423","jim","bob"]}
}
AVSC:
{
"name": "employee_training_dataset",
"type": "record",
"fields": [
{
"name": "dataset",
"type": "int"
},
{
"name": "app",
"type": ["int",
{
"type": "array",
"items": "string"
}
]
}
]
}
INT/RECORD case
JSON:
{
"dataset": 3,
"app": {
"app_record": {
"id": 4,
"address": "main"
}
}
}
AVSC:
{
"name": "employee_training_dataset",
"type": "record",
"fields": [
{
"name": "dataset",
"type": "int"
},
{
"name": "app",
"type": ["int",
{
"type": "record",
"name": "app_record",
"fields": [
{
"name": "id",
"type": "int"
},
{
"name": "address",
"type": "string"
}
]
}
]
}
]
}
Handling of NAs
Hi,
I have a data frame containing some NAs in one colum, When I write it out and read it back in, that column contains only NAs. What gives?
test case
df =
structure(list(x = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1), y = structure(1:10, .Label = c("1",
"2", "3", "4", "5", "6", "7", "8", "9", "10"), class = "factor"),
fac = structure(c(1L, NA, NA, 2L, 2L, 1L, NA, 2L, 1L, 1L), .Label = c("b",
"c"), class = "factor")), .Names = c("x", "y", "fac"), row.names = c(NA,
-10L), class = "data.frame")
write.avro(df, "/tmp/testxx.avro")
read.avro("/tmp/testxx.avro")
x y fac
1 1 1 <NA>
2 1 2 <NA>
3 1 3 <NA>
4 1 4 <NA>
5 1 5 <NA>
6 1 6 <NA>
7 1 7 <NA>
8 1 8 <NA>
9 1 9 <NA>
10 1 10 <NA>
Thanks
cannot install package in Rstudio
I am getting the following error RStudio for this
ERROR: dependencies 'bit64', 'rjson' are not available for package 'ravro'
- removing 'C:/Users/xyz/Documents/R/win-library/4.0/ravro'
Warning in install.packages : installation of package ‘C:/xyz/ravro/ravro-master/build/ravro_1.0.4.tar.gz’ had non-zero exit status
Also when i run install_github("RevolutionAnalytics/ravro") it returns the error:
Error: Failed to install 'unknown package' from GitHub:
HTTP error 404.
Not Found
Did you spell the repo owner (RevolutionAnalytics) and repo name (ravro) correctly?
- If spelling is correct, check that you have the required permissions to access the repo.
trouble on union with array/null case
Greetings!
When leveraging the union type for an array or null data, the read.avro routine fails. For reference, with the supplied test json and schema files (small_toy.zip), the avro java toolkit can successfully write an avro data file (fromjson), as well as write a json file from the created avro data file (tojson).
The issue appears to occur during the parse_avro.array call, which attempts to set schema_data. A debugger snapshot has been provided as well. It attempts to reference a nested array (schema) from a single atomic list (via "schema$").
This issue, if resolved, may also solve the issue found in a similar but larger test case (medium_toy.zip).
Thanks again,
Sean
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