[arrow-julia] branch main updated: Get dictionaries of children only when field.children not nothing (#382)

[quinnj]

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quinnj pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/arrow-julia.git


The following commit(s) were added to refs/heads/main by this push:
     new 94f7e37  Get dictionaries of children only when field.children not 
nothing  (#382)
94f7e37 is described below

commit 94f7e37f637878c9850ebe345664011a636e3ecb
Author: Önder Kartal <2331913+okar...@users.noreply.github.com>
AuthorDate: Thu May 25 22:27:50 2023 +0200

    Get dictionaries of children only when field.children not nothing  (#382)
    
    Closes #375
    
    This PR fixes a problem in reading an Arrow IPC file generated by C#
    Apache.Arrow 10.0.1 where the last recursive iteration to get the
    dictionaries returns `nothing` instead of an empty iterable.
---
 src/table.jl | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/table.jl b/src/table.jl
index b2d2c80..c32fe5a 100644
--- a/src/table.jl
+++ b/src/table.jl
@@ -406,8 +406,10 @@ function getdictionaries!(dictencoded, field)
     if d !== nothing
         dictencoded[d.id] = field
     end
-    for child in field.children
-        getdictionaries!(dictencoded, child)
+    if field.children !== nothing
+        for child in field.children
+            getdictionaries!(dictencoded, child)
+        end
     end
     return
 end